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| {{Infobox_Disease |
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| Name = Glomus tumor |
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| Image = |
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| Caption = |
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| DiseasesDB = 30732 |
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| ICD10 = |
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| ICD9 = |
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| ICDO = 8711/0 |
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| OMIM = 138000 |
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| MedlinePlus = |
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| eMedicineSubj = derm |
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| eMedicineTopic = 167 |
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| MeshID = D005918 |
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| }}
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| {{SI}}
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| {{CMG}}
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| {{Editor Help}} | | {{Glomus tumor}} |
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| ==Overview==
| | {{CMG}}; {{AE}} {{JH}}{{STM}} |
| :'''''Glomus tumor''' was also the name formerly used for a tumor now called a [[paraganglioma]].''
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| A '''glomus tumor''' (glomangioma) is a rare [[benign]] [[neoplasm]], is a specialized arteriovenous anastomosis usually found in the skin of the extremities. It arises from the [[glomus body]].
| | {{SK}} Barré-Masson syndrome; Glomangioma; Tumors of popoff; Solitary glomus tumor; Solid glomus tumor |
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| ==Presentation== | | ==[[Glomus tumor overview|Overview]]== |
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| They are usually solitary and small, and can be found under the [[fingernails]].<ref name="pmid17875128">{{cite journal |author=Koç O, Kivrak AS, Paksoy Y |title=Subungual glomus tumour: magnetic resonance imaging findings |journal=Australasian radiology |volume=51 Spec No. |issue= |pages=B107–9 |year=2007 |pmid=17875128 |doi=10.1111/j.1440-1673.2007.01797.x |doi_brokendate=2008-06-22}}</ref> They can also be found on the [[tympanic membrane]].<ref name="pmid11981934">{{cite journal |author=De Candia A, Como G, Passon P, Pedace E, Bazzocchi M |title=Sonographic findings in glomus tympanicum tumor |journal=Journal of clinical ultrasound : JCU |volume=30 |issue=4 |pages=236–40 |year=2002 |pmid=11981934 |doi=10.1002/jcu.10058}}</ref>
| | ==[[Glomus tumor historical perspective|Historical Perspective]]== |
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| They are often painful, and the pain is reproduced when the lesion is placed in cold water.
| | ==[[Glomus tumor classification|Classification]]== |
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| These tumors tend to have a bluish discoloration, although a white appearance is also noted. Elevation of the nail bed can occurr
| | ==[[Glomus tumor pathophysiology|Pathophysiology]]== |
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| ==Frequency== | | ==[[Glomus tumor causes|Causes]]== |
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| United States: The exact incidence of glomus tumors is unknown. The multiple variant is rare, accounting for less than 10% of all cases. The probable misdiagnosis of many of these lesions as hemangiomas or venous malformations also makes an accurate assessment of incidence difficult.
| | ==[[Glomus tumor differential diagnosis|Differentiating Glomus tumor from other Diseases]]== |
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| ==Mortality/Morbidity== | | ==[[Glomus tumor epidemiology and demographics|Epidemiology and Demographics]]== |
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| The most common adverse effect is pain, which is usually associated with solitary lesions. Multiple tumors are less likely to be painful. In one report, a patient with more than 400 glomus tumors had thrombocytopenia as a result of platelet sequestration (ie, Kasabach-Merritt syndrome). Malignant glomus tumors, or glomangiosarcomas, are extremely rare and usually represent a locally infiltrative malignancy. However, metastases do occur and are usually fatal.
| | ==[[Glomus tumor risk factors|Risk Factors]]== |
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| ==Sex== | | ==[[Glomus tumor screening|Screening]]== |
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| Solitary glomus tumors, particularly subungual lesions, are more common in females than in males. Multiple lesions are slightly more common in males.
| | ==[[Glomus tumor natural history|Natural History, Complications and Prognosis]]== |
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| ==Age== | |
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| Solitary glomus tumors are more frequent in adults than in others. Multiple glomus tumors develop 10-15 years earlier than single lesions; about one third of the cases of multiple tumors occur in those younger than 20 years. Congenital glomus tumors are rare; they are plaquelike in appearance and are considered a variant of multiple glomus tumors.
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| ==Diagnosis== | | ==Diagnosis== |
| | [[Glomus tumor diagnostic study of choice|Diagnostic study of choice]] | [[Glomus tumor history and symptoms|History and Symptoms]] | [[Glomus tumor physical examination|Physical Examination]] | [[Glomus tumor laboratory tests|Laboratory Findings]] | [[Glomus tumor electrocardiogram|Electrocardiogram]] | [[Glomus tumor x ray|X Ray]] | [[Glomus tumor echocardiography and ultrasound|Echocardiography and Ultrasound]] | [[Glomus tumor CT|CT scan]] | [[Glomus tumor MRI|MRI]] | [[Glomus tumor other imaging findings|Other Imaging Findings]] | [[Glomus tumor other diagnostic studies|Other Diagnostic Studies]] |
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| ===Physical Examination=== | | ==Treatment== |
| | | [[Glomus tumor medical therapy|Medical Therapy]] | [[Glomus tumor surgery|Surgery]] | [[Glomus tumor cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Glomus tumor future or investigational therapies|Future or Investigational Therapies]] |
| ====Ear Nose and Throat====
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| <div align="left">
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| <gallery heights="150" widths="150">
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| Image:Glomus Tympanicum Labeled.jpg|Picture of a left tympanic membrane with a pulsating red mass occupying the inferior portion of the middle ear space. The rest of the tympanic membrane is normal<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum Labeled Magnified.jpg|Glomus tympanicum magnified<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum DRUM 480x360 Labeled.jpg|This patient presented with a history of severe bleeding from the placement of a PE tube in her right ear. On examination, the posterior half of the tympanic membrane was red and pulsating<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum 480x360 Labeled.jpg|Surgical picture of the above patient. A tympanomeatal flap has been elevated and reflected anteriorly to expose the glomus tympanicum that filled the posterior half of the middle ear space<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum CT Scan Axial Half.jpg|Axial CT scan showing the glomus tumor growing from the medial wall of the middle ear<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum CT Scan Coronal half.jpg|Coronal CT scan showing the glomus tympanicum tumor growing from the medial wall of the middle ear<ref>http://www.ghorayeb.com</ref>.
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| Image:Glomus Tympanicum SQ 344 Labeled.jpg|Surgical picture of glomus tympanicum in the eft middle ear. The tympanomeatal flap has been raised and reflected anteriorly<ref>http://www.ghorayeb.com</ref>.
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| </gallery>
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| </div>
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| | ==Case Studies== |
| | [[Glomus tumor case study one|Case #1]] |
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| ===MRI=== | | ==Related Chapters== |
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| ([http://www.radswiki.net Images courtesy of RadsWiki])
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| <gallery>
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| Image:Glomus-jugulare-001.jpg|Glomus tumor
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| Image:Glomus-jugulare-002.jpg|Glomus tumor
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| Image:Glomus-jugulare-003.jpg|Glomus tumor
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| Image:Glomus-jugulare-004.jpg|Glomus tumor
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| Image:Glomus-jugulare-005.jpg|Glomus tumor
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| Image:Glomus-jugulare-006.jpg|Glomus tumor
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| Image:Glomus-jugulare-007.jpg|Glomus tumor
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| Image:Glomus-jugulare-008.jpg|Glomus tumor
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| Image:Glomus-jugulare-009.jpg|Glomus tumor
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| Image:Glomus-jugulare-010.jpg|Glomus tumor
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| </gallery>
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| ==See also==
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| * [[Coccygeal glomus]] | | * [[Coccygeal glomus]] |
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| ==References==
| | {{Epithelial neoplasms}} |
| * {{DukeOrtho|glomus_tumor}}
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| ==External links==
| | [[Category:Disease]] |
| * {{WhoNamedIt|synd|1584}}
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| * {{Chorus|00314}}
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| {{Epithelial neoplasms}}
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| {{SIB}}
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| [[Category:Types of cancer]] | | [[Category:Types of cancer]] |
| [[Category:Dermatology]] | | [[Category:Dermatology]] |
| [[Category:Oncology]] | | [[Category:Oncology]] |
| [[Category:Otolaryngology]] | | [[Category:Otolaryngology]] |
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| [[de:Glomustumor]]
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| {{WikiDoc Help Menu}} | | {{WikiDoc Help Menu}} |
| {{WikiDoc Sources}} | | {{WikiDoc Sources}} |
| | [[Category:Up-To-Date]] |
| | [[Category:Oncology]] |
| | [[Category:Medicine]] |
| | [[Category:Orthopedics]] |