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* Cellulitis
:* Cellulitis is an acute, spreading pyogenic inflammation of the dermis and subcutaneous tissue, usually complicatinga wound, ulcer, or dermatosis.<ref name="pmid14985488">{{cite journal| author=Swartz MN| title=Clinical practice. Cellulitis. | journal=N Engl J Med | year= 2004 | volume= 350 | issue= 9 | pages= 904-12 | pmid=14985488 | doi=10.1056/NEJMcp031807 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14985488  }} </ref>

* Erysipelas
:* Erysipelas is a superficial infection of the dermis and upper subcutaneous tissue with prominent lymphatic involvement, presenting with an indurated, "peau d’orange" appearance with a raised border that is demarcated from uninvolved skin.<ref name="pmid14985488">{{cite journal| author=Swartz MN| title=Clinical practice. Cellulitis. | journal=N Engl J Med | year= 2004 | volume= 350 | issue= 9 | pages= 904-12 | pmid=14985488 | doi=10.1056/NEJMcp031807 | pmc= | url=http://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=14985488  }} </ref>

* Impetigo
:* Impetigo is a contagious superficial pyogenic infection of the skin, that usually begins as vesicles with a very thin, fragile roof consisting only of stratum corneum.
::* Non-bullous impetigo (or impetigo contagiosa of Tilbury Fox): 
::* Bullous impetigo

* Ecthyma
:* Ecthyma is a pyogenic infection of the skin characterized by the formation of adherent crusts, beneath which ulceration occurs.

* Furuncle (boil)
:* Furuncle is an acute, usually necrotic, infection of a hair follicle with ''Staphylococcus aureus''.

* Sycosis
:* Sycosis is a subacute or chronic pyogenic infection involving the whole depth of the follicle. 
::* Lupoid sycosis (ulerythema sycosiforme): sycosis in which the follicles are destroyed with clinically evident scarring.
::* Folliculitis decalvans: sycosis involving the scalp.

* Erythrasma
:* Erythrasma is a mild, chronic, localized superficial infection of the skin caused by a group of closely related aerobic coryneform bacteria, usually known as Corynebacterium minutissimum.


* Dermatitis vegetans (pyoderma vegetans)
:* Dermatitis vegetans is a condition of uncertain etiology characterized by the development of epithelial hyperplasia and chronic granulomatous changes.


* Perifolliculitis capitis (abscedens et suffodiens; dissecting cellulitis of the scalp)
:* Perifolliculitis capitis is a rare, chronic, suppurative disease of the scalp.


* Suppurative hidradenitis (apocrinitis; hidradenitis suppurativa)
:* Suppurative hidradenitis is a chronic relapsing inflammatory disease originating in apocrine gland follicles, which may become chronic and often indolent due to subcutaneous extension with induration, scarring, destruction of skin appendages and sinus formation.


* Erysipeloid
:* Erysipeloid is an acute, rarely chronic, infection with ''Erysipelothrix rusiopathiae''.



<ref name="Rook's Textbook of Dermatology">{{cite book | last = Rook | first = Arthur | title = Rook's textbook of dermatology | publisher = Wiley-Blackwell | location = Chichester, West Sussex, UK Hoboken, NJ | year = 2010 | isbn = 1405161698 }}</ref>

==References==

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