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| ==Overview== | | ==Overview== |
| PPE must be differentiated from [[Graft-versus-host disease|Graft-Versus-Host Disease]] ([[GVHD]]). | | Palmar plantar erythrodysesthesia (PPE) must be differentiated from other [[Skin disorder|skin disorders]] that involve [[Hand|palms]] and/or [[Sole (foot)|soles]], such as [[Graft-versus-host disease]], [[contact dermatitis]], [[Plaque psoriasis|palmoplantar plaque psoriasis]], [[dyshidrotic eczema]], and [[Pustulosis|palmoplantar pustulosis]]. |
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| ==Differentiating palmar plantar erythrodysesthesia from other Diseases==
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| | ==Differentiating Palmar Plantar Erythrodysesthesia from other Diseases== |
| | Palmar plantar erythrodysesthesia (PPE) must be differentiated from other [[Skin disorder|skin disorders]] that involve [[Hand|palms]] and/or [[Sole (foot)|soles]], such as [[Graft-versus-host disease]], [[contact dermatitis]], [[Plaque psoriasis|palmoplantar plaque psoriasis]], [[dyshidrotic eczema]], and [[Pustulosis|palmoplantar pustulosis]]. |
| | {| style="border: 0px; font-size: 90%; margin: 3px;" align=center |
| | ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Disease |
| | ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Clinical manifestation |
| | ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Histopathology |
| | ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Additional diagnostic clues |
| | |- |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''Palmar plantar erythrodysesthesia''' |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * Areas of well-defined intense [[erythema]] and [[edema]] |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * A variable degree of [[Epidermis (skin)|epidermal]] ([[Keratinocyte|keratinocytes]]) [[necrosis]] <ref name="pmid8468414">{{cite journal| author=Fitzpatrick JE| title=The cutaneous histopathology of chemotherapeutic reactions. | journal=J Cutan Pathol | year= 1993 | volume= 20 | issue= 1 | pages= 1-14 | pmid=8468414 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8468414 }} </ref> |
| | * Vacuolar degeneration of the [[Stratum germinativum|basal cell layer]] of [[Epidermis (skin)|epidermis]] |
| | * Spongiosis |
| | *[[Hyperkeratosis]] |
| | * Lymphohistiocytic infiltrates |
| | *[[Superficial (human anatomy)|Superficial]] perivascular infiltration of [[dermis]] by [[Lymphocyte|lymphocytes]] and [[eosinophils]] |
| | *[[Papilla|Papillary]] [[Dermis|dermal]] [[edema]] |
| | * Neutrophilic eccrine hidradenitis |
| | * Eccrine squamous syringometaplasia, in severe PPE ([[World Health Organization|WHO]] grades 3 and 4)<ref name="pmid9236526">{{cite journal| author=Valks R, Fraga J, Porras-Luque J, Figuera A, Garcia-Diéz A, Fernändez-Herrera J| title=Chemotherapy-induced eccrine squamous syringometaplasia. A distinctive eruption in patients receiving hematopoietic progenitor cells. | journal=Arch Dermatol | year= 1997 | volume= 133 | issue= 7 | pages= 873-8 | pmid=9236526 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9236526 }} </ref> |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * History of [[chemotherapeutic agent]] use |
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| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''[[Graft-versus-host disease|Graft-versus-host disease (GVHD)]]''' |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * A diffuse [[Macule|macular]] [[erythema]] which may form [[Papule|papules]] |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | *[[Histology|Histologic]] features of [[Graft-versus-host disease]] and palmar plantar erythrodysesthesia are identical in early stages and serial [[biopsies]] may be needed to distinguish between these two entities. |
| | * Features suggestive of [[Graft-versus-host disease]]:<ref name="pmid23008">{{cite journal| author=Sale GE, Lerner KG, Barker EA, Shulman HM, Thomas ED| title=The skin biopsy in the diagnosis of acute graft-versus-host disease in man. | journal=Am J Pathol | year= 1977 | volume= 89 | issue= 3 | pages= 621-36 | pmid=23008 | doi= | pmc=2032260 | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=23008 }} </ref> |
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| | :* Degenerate [[Keratinocyte|keratinocytes]] at all levels of the [[Epidermis (skin)|epidermis]] |
| | :* Adjacent [[Lymphocyte|lymphocytes]] (satellite cell [[necrosis]]) |
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * Extracutaneous manifestations of [[Acute (medicine)|Acute]] [[Graft-versus-host disease|GVHD]], including:<ref name="pmid9236526">{{cite journal| author=Valks R, Fraga J, Porras-Luque J, Figuera A, Garcia-Diéz A, Fernändez-Herrera J| title=Chemotherapy-induced eccrine squamous syringometaplasia. A distinctive eruption in patients receiving hematopoietic progenitor cells. | journal=Arch Dermatol | year= 1997 | volume= 133 | issue= 7 | pages= 873-8 | pmid=9236526 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9236526 }} </ref> |
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| {| class="wikitable"
| | :*[[Gastrointestinal]] [[symptoms]], such as [[diarrhea]] and [[abdominal pain]] |
| ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Disease
| | :* Elevated [[liver enzymes]] |
| ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Clinical Characteristics
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| ! align="center" style="background:#4479BA; color: #FFFFFF;" + |Other clues to the diagnosis
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| |- | | |- |
| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Cutaneous T cell lymphoma]]/[[Mycosis fungoides]]<ref name="urlMycosis Fungoides and the Sézary Syndrome Treatment (PDQ®)—Patient Version - National Cancer Institute">{{cite web |url=https://www.cancer.gov/types/lymphoma/patient/mycosis-fungoides-treatment-pdq |title=Mycosis Fungoides and the Sézary Syndrome Treatment (PDQ®)—Patient Version - National Cancer Institute |format= |work= |accessdate=}}</ref> | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''[[Allergic contact dermatitis]]'''<ref name="">{{cite book | last = Goldsmith | first = Lowell | title = Fitzpatrick's dermatology in general medicine | publisher = McGraw-Hill Medical | location = New York | year = 2012 | isbn = 978-0-07-166904-7 }}</ref> |
| | | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * '''Premycotic phase:''' A scaly, red [[rash]] in areas of the [[body]] that usually are not exposed to the sun. This rash does not cause symptoms and may last for months or years.
| | * Well-demarcated, [[Eczema|eczematous]] eruptions localized to the area of [[skin]] that in contact with the culprit [[allergen]] |
| * '''Patch phase:''' Thin, [[erythematous]], [[eczema]]-like rash.
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| * '''[[Plaque]] phase:''' Small raised [[Bumps on skin|bumps]] ([[Papule|papules]]) or hardened [[lesions]] on the skin, which may be [[erythematous]].
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| * '''[[Tumor]] phase:''' Tumors form on the [[skin]]. [[Infection]] secondary to [[Ulcer|ulcers]]. | |
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| * [[Epidermis (skin)|Epidermal]] [[atrophy]] or poikiloderma
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| * Generalized [[itching]] ([[pruritus]]) | | :*[[Acute (medicine)|Acute]] eruption: [[Vesicle (biology)|Vesicular]] |
| * [[Pain]] in the affected area of the skin
| | :*[[Chronic (medical)|Chronic]] eruption: [[Lichenification|Lichenified]] and scaly [[Plaque|plaques]] |
| * [[Insomnia]] | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Red ([[erythematous]]) patches scattered over the [[skin]] of the [[trunk]] and the [[extremities]]
| | *[[Eosinophilic]] spongiosis |
| * Tumor-like lobulated outgrowths form on the skin in the latter phase of the disease
| | *[[Exocytosis]] of [[eosinophils]] and [[Lymphocyte|lymphocytes]] |
| * [[Weight loss]] | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * [[Lymphadenopathy]] | | * History of [[allergen]] exposure |
| * [[Malaise]] and [[fatigue]]
| | *[[Pruritis|Pruritic]] [[lesions]] |
| * [[Anemia]] | | * Patch [[Experiment|testing]] may help to identify [[Allergen|allergens]] |
| * May progress to [[Sezary syndrome]] (skin involvement plus hematogenous dissemination) | |
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| * [[Sezary syndrome]] | |
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| [[Image:Mycosis_fungoides.JPG|200px|courtesy of wikipedia.org]] | |
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Pityriasis rosea]]<ref name="pmid27512182">{{cite journal |vauthors=Mahajan K, Relhan V, Relhan AK, Garg VK |title=Pityriasis Rosea: An Update on Etiopathogenesis and Management of Difficult Aspects |journal=Indian J Dermatol |volume=61 |issue=4 |pages=375–84 |year=2016 |pmid=27512182 |pmc=4966395 |doi=10.4103/0019-5154.185699 |url=}}</ref> | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''[[Psoriasis|Palmoplantar plaque psoriasis]]''' |
| | | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Pink or salmon in color, which may be scaly; referred to as "herald patch" | | * Sharply defined [[Erythema|erythematous]], scaly [[Plaque|plaques]] on the [[Hand|palms]] and/or [[Sole (foot)|soles]] |
| * Oval shape | | *[[Fissure|Fissures]] |
| * Long axis oriented along the cleavage lines | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Distributed on the [[trunk]] and [[proximal extremities]] | | * Acanthosis |
| * Squamous marginal collarette and a “fir-tree” or “Christmas tree” distribution on posterior trunk
| | *[[Hyperkeratosis]] |
| * Secondary to [[viral infection]]<nowiki/>s
| | * Parakeratosis |
| * Resolves spontaneously after 6-8 weeks | | * Neutrophilic infiltration in the [[Epidermis (skin)|epidermis]] and [[stratum corneum]] (Kogoj pustules and Munro's [[Abscesses|microabscesses]]) |
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| | * Abundant mononuclear [[cells]] (mainly [[Myelocyte|myeloid cells]] and [[T cell|T cells]]) in the [[dermis]] |
| * Preceded by a prodrome of:
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| ** [[Sore throat]]
| | *[[Itch|Pruritus]] is common |
| ** [[Gastrointestinal tract|Gastrointestinal]] disturbance
| | * Positive [[Koebner phenomenon]] |
| ** [[Fever]]
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| ** [[Arthralgia]]
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| | | |
| * Infection by any of the following:<ref name="pmid19997691">{{cite journal |vauthors=Prantsidis A, Rigopoulos D, Papatheodorou G, Menounos P, Gregoriou S, Alexiou-Mousatou I, Katsambas A |title=Detection of human herpesvirus 8 in the skin of patients with pityriasis rosea |journal=Acta Derm. Venereol. |volume=89 |issue=6 |pages=604–6 |year=2009 |pmid=19997691 |doi=10.2340/00015555-0703 |url=}}</ref>
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| ** [[Human herpesvirus 6|HHV-6]]
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| ** [[HHV-7]]
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| ** [[HHV-8]] | |
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| [[Image:Pityriasisrosea.png|200px|courtesy of https://commons.wikimedia.org]] | |
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Pityriasis lichenoides chronica]] | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''[[Dyshidrotic eczema]]''' |
| | | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Recurrent [[lesions]] are usually less evenly scattered than in cases of psoriasis | | * Deep-seated clear [[vesicles]]; later, [[Scaling skin|scaling]], [[Fissure|fissures]] and [[lichenification]] occur |
| * Brownish red or orange-brown in color
| | * Deep-seated [[Vesicle|vesicles]] or [[Blister|blisters]] on the tips and lateral sides of the [[Finger|fingers]], [[Hand|palms]], and [[Sole (foot)|soles]] with subsequent [[Scaling skin|scaling]], [[Fissure|fissures]] and [[lichenification]] |
| * [[Lesions]] are capped by a single detachable, opaque, mica-like scale
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Often leave [[Hypopigmented area|hypopigmented]] [[Macule|macules]]
| | *[[Acute (medicine)|Acute:]] |
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| * High [[fever]]
| | :* Intraepidermal spongiotic [[Vesicle|vesicles]] or bullae that do not involve the intraepidermal portion of the [[Eccrine sweat glands|eccrine sweat duct]] (acrosyringium) |
| * [[Malaise]] | | :* A sparse, superficial perivascular infiltrate of [[Lymphocyte|lymphocytes]] |
| * [[Myalgias]]
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| * [[Paraesthesia]]
| | *[[Chronic (medical)|Chronic:]] |
| * [[Pruritis|Pruritus]]
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| * Infection by any of the following:<ref name="pmid9109005">{{cite journal |vauthors=Smith KJ, Nelson A, Skelton H, Yeager J, Wagner KF |title=Pityriasis lichenoides et varioliformis acuta in HIV-1+ patients: a marker of early stage disease. The Military Medical Consortium for the Advancement of Retroviral Research (MMCARR) |journal=Int. J. Dermatol. |volume=36 |issue=2 |pages=104–9 |year=1997 |pmid=9109005 |doi= |url=}}</ref>
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| ** [[Epstein Barr virus|Epstein-Barr virus]] (EBV)
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| ** ''[[Toxoplasma gondii]]''
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| ** [[Human Immunodeficiency Virus (HIV)|Human immunodeficiency virus]] (HIV)
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| [[Image:PLEVA2.jpg|200px|courtesy of http://www.regionalderm.com]] | |
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Nummular dermatitis]]<ref name="pmid23517392">{{cite journal |vauthors=Jiamton S, Tangjaturonrusamee C, Kulthanan K |title=Clinical features and aggravating factors in nummular eczema in Thais |journal=Asian Pac. J. Allergy Immunol. |volume=31 |issue=1 |pages=36–42 |year=2013 |pmid=23517392 |doi= |url=}}</ref> | |
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| * Multiple coin-shaped [[Eczematous Scaling|eczematous]] [[lesions]] | |
| * Commonly affecting the [[extremities]] (lower>upper) and [[trunk]]
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| * May ooze [[fluid]] and become dry and crusty | |
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| * Often appears after a skin injury, such as a [[burn]], [[abrasion]] (from friction), or [[insect bite]] | |
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| * [[Lesions]] commonly relapse after occasional remission or may persist for long periods
| | :* Predominance of parakeratosis and acanthosis with minimal or no spongiosis and a [[dermal]] [[Lymphocyte|lymphocytic]] infiltrate |
| * [[Pruritis|Pruritus]]
| | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
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| | * Intensely [[Pruritis|pruritic]] |
| * Associated with:
| | * History of recurrence |
| ** Dry skin
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| ** Emotional stress
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| ** [[Allergens]] (rubber chemicals, [[formaldehyde]], [[neomycin]], chrome, [[Mercury (element)|mercury]], and [[nickel]])
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| ** [[Staphylococcus]] infection
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| ** Seasonal variation
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| ** [[Alcohol]]
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| ** [[Drugs]]
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| ** [[Atopy]]
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| [[Image:Nummular dermatitis dry.jpg|200px|courtesy of your-doctor.net dermatology atlas]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Secondary syphilis]]<ref name="urlSTD Facts - Syphilis">{{cite web |url=https://www.cdc.gov/std/syphilis/stdfact-syphilis.htm |title=STD Facts - Syphilis |format= |work= |accessdate=}}</ref>
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| * Round, coppery, red colored [[lesions]] on palms and soles
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| * [[Papule|Papules]] with collarette of scales
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| * [[Fever]]
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| * [[Lymphadenopathy|Generalized lymphadenopathy]]
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| * [[Sore throat]]
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| * [[Hair loss|Patchy hair loss]]
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| * [[Headaches|Headache]]
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| * [[Weight loss]]
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| * [[Myalgia]]
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| * [[Fatigue]]
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| * Associated with:
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| ** [[Condyloma latum|Condylomata lata]]
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| ** Corona verinata
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| ** Positive [[Venereal disease research laboratory (VDRL) test|VDRL]] test
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| [[Image:Secondary_Syphilis.jpg|200px|courtesy of wikipedia.org]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Bowen’s disease]]<ref name="pmid28523295">{{cite journal |vauthors=Neagu TP, Ţigliş M, Botezatu D, Enache V, Cobilinschi CO, Vâlcea-Precup MS, GrinŢescu IM |title=Clinical, histological and therapeutic features of Bowen's disease |journal=Rom J Morphol Embryol |volume=58 |issue=1 |pages=33–40 |year=2017 |pmid=28523295 |doi= |url=}}</ref>
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| * [[Erythematous]], small, scaly plaque, which enlarges erratically over time
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| * Scale is usually yellow or white and it is easily detachable without any [[bleeding]]
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| * Well-defined margins
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| * [[Pruritis|Pruritus]]
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| * [[Pain]]
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| * Bleeding [[lesions]]
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| * Associated with:<ref name="pmid25201325">{{cite journal |vauthors=Murao K, Yoshioka R, Kubo Y |title=Human papillomavirus infection in Bowen disease: negative p53 expression, not p16(INK4a) overexpression, is correlated with human papillomavirus-associated Bowen disease |journal=J. Dermatol. |volume=41 |issue=10 |pages=878–84 |year=2014 |pmid=25201325 |doi=10.1111/1346-8138.12613 |url=}}</ref>
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| ** [[Erythroplasia of Queyrat]] ([[Bowen's disease]] of the [[penis]])
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| ** [[Squamous cell carcinoma]]
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| ** Solar radiation and [[ultraviolet]] (UV) exposure
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| ** [[Radiation therapy|Radiotherapy]]
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| ** [[Immunosuppression]]
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| ** [[Arsenic]] exposure
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| ** [[Human papillomavirus|Human papilloma virus]] (HPV) type 16
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| ** [[Polyomavirus|Merkel cell polyomavirus]]
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| ** [[Sjögren's syndrome|Sjögren’s syndrome]]
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| [[Image:Bowen.jpg|200px|courtesy of wikipedia.org]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Exanthematous pustulosis]]<ref name="pmid26354880">{{cite journal |vauthors=Szatkowski J, Schwartz RA |title=Acute generalized exanthematous pustulosis (AGEP): A review and update |journal=J. Am. Acad. Dermatol. |volume=73 |issue=5 |pages=843–8 |year=2015 |pmid=26354880 |doi=10.1016/j.jaad.2015.07.017 |url=}}</ref>
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| * Numerous small, primarily non-follicular, sterile [[pustules]], arising within large areas of [[Edema|edematous]] [[erythema]]
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| * [[Fever]]
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| * [[Leukocytosis]]
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| * Intracorneal, subcorneal, and/or intraepidermal [[pustules]] with [[papillary]] [[dermal]] [[edema]] containing [[neutrophils]] and [[eosinophils]]
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| * Associated with:<ref name="pmid12466124">{{cite journal |vauthors=Schmid S, Kuechler PC, Britschgi M, Steiner UC, Yawalkar N, Limat A, Baltensperger K, Braathen L, Pichler WJ |title=Acute generalized exanthematous pustulosis: role of cytotoxic T cells in pustule formation |journal=Am. J. Pathol. |volume=161 |issue=6 |pages=2079–86 |year=2002 |pmid=12466124 |pmc=1850901 |doi=10.1016/S0002-9440(10)64486-0 |url=}}</ref>
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| ** [[Antibiotics]] ([[Penicillin|penicillins]], [[sulfonamides]], [[tetracyclines]])
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| ** [[Carbamazepine]]
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| ** [[Calcium channel blocker|Calcium channel blockers]] ([[Diltiazem]])
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| ** [[Hydroxychloroquine]]
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| [[Image:Acute_generalized_exanthematous_pustulosis.jpg|200px|commons.wikimedia.org]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Lichen planus|Hypertrophic lichen planus]]<ref name="pmid27222766">{{cite journal |vauthors=Ankad BS, Beergouder SL |title=Hypertrophic lichen planus versus prurigo nodularis: a dermoscopic perspective |journal=Dermatol Pract Concept |volume=6 |issue=2 |pages=9–15 |year=2016 |pmid=27222766 |pmc=4866621 |doi=10.5826/dpc.0602a03 |url=}}</ref>
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| * Classically involves shin and ankles and is characterized by [[Hyperkeratosis|hyperkeratotic]] [[Plaque|plaques]] and [[Nodule (medicine)|nodules]] covered by a scale
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| * [[Lesions]] may transform into [[Hyperkeratosis|hyperkeratotic]] thickened, elevated, purplish or reddish [[Plaque|plaques]] and [[nodules]]
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| * Chronic [[pruritis|pruritus]]
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| * Scaling
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| * May be [[asymptomatic]]
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| * Associated with [[Hepatitis C virus]] infection<ref name="pmid19770446">{{cite journal |vauthors=Shengyuan L, Songpo Y, Wen W, Wenjing T, Haitao Z, Binyou W |title=Hepatitis C virus and lichen planus: a reciprocal association determined by a meta-analysis |journal=Arch Dermatol |volume=145 |issue=9 |pages=1040–7 |year=2009 |pmid=19770446 |doi=10.1001/archdermatol.2009.200 |url=}}</ref>
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| [[Image:Lichen_planus2.JPG|200px|courtesy of wikipedia.org]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |Sneddon–Wilkinson disease<ref name="pmid9564592">{{cite journal |vauthors=Lutz ME, Daoud MS, McEvoy MT, Gibson LE |title=Subcorneal pustular dermatosis: a clinical study of ten patients |journal=Cutis |volume=61 |issue=4 |pages=203–8 |year=1998 |pmid=9564592 |doi= |url=}}</ref> | |
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| * [[Flaccid]] [[pustules]] that are often generalized and have a tendency to involve the flexural areas
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| * Annular configuration
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| * [[Pruritis|Pruritus]] | |
| * May be asymptomatic
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| * Associated with:
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| ** [[Monoclonal gammopathy]], usually an [[IgA]] paraproteinemia<ref name="pmid3056995">{{cite journal |vauthors=Kasha EE, Epinette WW |title=Subcorneal pustular dermatosis (Sneddon-Wilkinson disease) in association with a monoclonal IgA gammopathy: a report and review of the literature |journal=J. Am. Acad. Dermatol. |volume=19 |issue=5 Pt 1 |pages=854–8 |year=1988 |pmid=3056995 |doi= |url=}}</ref>
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| ** [[Crohn's disease]]<ref name="pmid1357895">{{cite journal |vauthors=Delaporte E, Colombel JF, Nguyen-Mailfer C, Piette F, Cortot A, Bergoend H |title=Subcorneal pustular dermatosis in a patient with Crohn's disease |journal=Acta Derm. Venereol. |volume=72 |issue=4 |pages=301–2 |year=1992 |pmid=1357895 |doi= |url=}}</ref>
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| ** [[Osteomyelitis]]
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| ** [[Adalimumab]]<ref name="pmid23489057">{{cite journal |vauthors=Sauder MB, Glassman SJ |title=Palmoplantar subcorneal pustular dermatosis following adalimumab therapy for rheumatoid arthritis |journal=Int. J. Dermatol. |volume=52 |issue=5 |pages=624–8 |year=2013 |pmid=23489057 |doi=10.1111/j.1365-4632.2012.05707.x |url=}}</ref>
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| [[Image:Sneddon wilkinson disease 03.jpeg|200px|courtesy http://www.atlasdermatologico.com.br/disease.jsf?diseaseId=427]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Parapsoriasis|Small plaque parapsoriasis]]<ref name="pmid7026622">{{cite journal |vauthors=Lambert WC, Everett MA |title=The nosology of parapsoriasis |journal=J. Am. Acad. Dermatol. |volume=5 |issue=4 |pages=373–95 |year=1981 |pmid=7026622 |doi= |url=}}</ref>
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| * [[Erythematous]] [[plaques]] with fine scaly surface
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| * May present with elongated, finger-like patches
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| * Symmetrical distribution on the flanks
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| * Known as digitate dermatosis
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| * [[Lesions]] may be [[asymptomatic]]
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| * May be mildly [[Itch|pruritic]]
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| * May fade or disappear after sun exposure during the summer season, but typically recur during the winter | |
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| * May progress to [[mycosis fungoides]]<ref name="pmid16191852">{{cite journal |vauthors=Väkevä L, Sarna S, Vaalasti A, Pukkala E, Kariniemi AL, Ranki A |title=A retrospective study of the probability of the evolution of parapsoriasis en plaques into mycosis fungoides |journal=Acta Derm. Venereol. |volume=85 |issue=4 |pages=318–23 |year=2005 |pmid=16191852 |doi=10.1080/00015550510030087 |url=}}</ref>
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| [[Image:Small_plaque_parapsoriasis.jpg|200px|courtesy http://www.regionalderm.com]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Intertrigo]]<ref name="pmid16156342">{{cite journal |vauthors=Janniger CK, Schwartz RA, Szepietowski JC, Reich A |title=Intertrigo and common secondary skin infections |journal=Am Fam Physician |volume=72 |issue=5 |pages=833–8 |year=2005 |pmid=16156342 |doi= |url=}}</ref>
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| * Red and fleshy looking [[lesion]] in [[skin]] folds
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| * [[Itching]]
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| * Oozing
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| * May be sore
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| * [[Pruritis|Pruritus]]
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| * Musty odor
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| * Associated with:
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| ** [[Infections]] (Fungal, bacterial, viral)
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| ** [[Allergies]]
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| ** [[Diabetes Mellitus|Diabetes]]
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| ** [[Obesity]]
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| [[Image:Axillary_intertrigo.png|200px|courtesy of cdc.gov]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Langerhans cell histiocytosis]]<ref name="pmid18577030">{{cite journal |vauthors=Satter EK, High WA |title=Langerhans cell histiocytosis: a review of the current recommendations of the Histiocyte Society |journal=Pediatr Dermatol |volume=25 |issue=3 |pages=291–5 |year=2008 |pmid=18577030 |doi=10.1111/j.1525-1470.2008.00669.x |url=}}</ref>
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| * Scaling and crusting of [[scalp]]
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| * Pathological fractures<ref name="pmid1636041">{{cite journal |vauthors=Stull MA, Kransdorf MJ, Devaney KO |title=Langerhans cell histiocytosis of bone |journal=Radiographics |volume=12 |issue=4 |pages=801–23 |year=1992 |pmid=1636041 |doi=10.1148/radiographics.12.4.1636041 |url=}}</ref>
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| * Visceromegaly ([[hepatomegaly]], [[spleenomegaly]])
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| * [[Chronic cough, severe cold|Chronic cough]]
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| * [[Dyspnea]]<ref name="pmid17527085">{{cite journal |vauthors=Sholl LM, Hornick JL, Pinkus JL, Pinkus GS, Padera RF |title=Immunohistochemical analysis of langerin in langerhans cell histiocytosis and pulmonary inflammatory and infectious diseases |journal=Am. J. Surg. Pathol. |volume=31 |issue=6 |pages=947–52 |year=2007 |pmid=17527085 |doi=10.1097/01.pas.0000249443.82971.bb |url=}}</ref>
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| * [[Lymphadenopathy]]
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| * Associated with:
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| ** [[Diabetes insipidus]]<ref name="pmid16047354">{{cite journal |vauthors=Grois N, Pötschger U, Prosch H, Minkov M, Arico M, Braier J, Henter JI, Janka-Schaub G, Ladisch S, Ritter J, Steiner M, Unger E, Gadner H |title=Risk factors for diabetes insipidus in langerhans cell histiocytosis |journal=Pediatr Blood Cancer |volume=46 |issue=2 |pages=228–33 |year=2006 |pmid=16047354 |doi=10.1002/pbc.20425 |url=}}</ref>
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| ** [[Pancytopenia]]
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| [[Image:Langerhan_cell_histiocytosis.jpg|200px|courtesy http://www.regionalderm.com]]
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Tinea manuum]]/pedum/capitis<ref name="pmid15050029">{{cite journal |vauthors=Al Hasan M, Fitzgerald SM, Saoudian M, Krishnaswamy G |title=Dermatology for the practicing allergist: Tinea pedis and its complications |journal=Clin Mol Allergy |volume=2 |issue=1 |pages=5 |year=2004 |pmid=15050029 |pmc=419368 |doi=10.1186/1476-7961-2-5 |url=}}</ref> | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | '''[[Pustulosis palmaris et plantaris|Palmoplantar pustulosis]]''' |
| | | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| * Scaling, flaking, and sometimes blistering of the affected areas | | * Multiple [[pustules]] on the [[Hand|palms]] and/or [[Sole (foot)|soles]], with surrounding [[erythema]] and [[hyperkeratosis]] |
| * Hair loss with a black dot on scalp in case of [[tinea capitis]] | | *[[Fissure|Fissures]] |
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| | *[[Nail changes]] |
| * [[Pruritis|Pruritus]] | | * Brown [[macules]] at the site of resolving [[pustules]] |
| * [[KOH]] preparation of the [[lesions]] confirms [[fungal infection]] | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | | | * Parakeratosis |
| * Associated with:
| | * Loss of [[granular layer]] |
| ** [[Diabetes mellitus|Diabetes]] | | * Psoriasiform epidermal hyperplasia |
| ** [[Immunosupression]]
| | * Spongiosis |
| ** Intimate contact with infected person | | *[[Pustules]] filled with [[Neutrophil|neutrophils]] and [[eosinophils]] in the upper [[Epidermis (skin)|epidermis]] |
| ** May lead to [[asthma]] exacerbation
| | *[[Mast cell]] and [[eosinophil]] infiltration in the upper [[dermis]] |
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| | * Mixed perivascular and diffuse infiltrate in the [[dermis]] ([[Lymphocyte|lymphocytes]], [[neutrophils]], [[eosinophils]], and [[Mast cell|mast cells]]) |
| [[Image:Tinea_pedis.jpg|200px|courtesy regionalderm.com]] | | | style="background: #DCDCDC; padding: 5px; text-align: left;" valign="top" | |
| | * Non-[[pustular psoriasis]]-like eruptions may be seen in other areas |
| | *[[Nail changes]] may be seen |
| | *[[Arthralgia]] or unspecified [[arthritis]] may be seen in some [[Patient|patients]] |
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| | style="background: #DCDCDC; padding: 5px; text-align: center;" |[[Seborrheic dermatitis]]
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| * [[Papulosquamous]], scaly, flaky, [[itchy]], and red [[rash]] found particularly at [[sebaceous gland]]-rich areas of the body
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| * [[Pruritus]]
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| * Associated with:<ref name="pmid16848386">{{cite journal |vauthors=Schwartz RA, Janusz CA, Janniger CK |title=Seborrheic dermatitis: an overview |journal=Am Fam Physician |volume=74 |issue=1 |pages=125–30 |year=2006 |pmid=16848386 |doi= |url=}}</ref>
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| ** [[AIDS]]
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| ** [[Stress]]<ref name="pmid18033062">{{cite journal |vauthors=Misery L, Touboul S, Vinçot C, Dutray S, Rolland-Jacob G, Consoli SG, Farcet Y, Feton-Danou N, Cardinaud F, Callot V, De La Chapelle C, Pomey-Rey D, Consoli SM |title=[Stress and seborrheic dermatitis] |language=French |journal=Ann Dermatol Venereol |volume=134 |issue=11 |pages=833–7 |year=2007 |pmid=18033062 |doi= |url=}}</ref>
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| ** [[Fungal infection]]
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| ** [[Fatigue]]
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| ** [[Sleep deprivation]]
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| ** Change of season
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| ** [[Parkinson's disease|Parkinson's]] disease
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| ** [[Biotin]] deficiency
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| [[Image:Seborrhoeic_dermatitisnew.jpg|200px|courtesy of wikipedia.com]]
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| |} | | |} |
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