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==Overview==
==Overview==
Dermatofibromas are harmless benign skin growths, found especially on the legs, that range in size from about 0.5 to 1 cm. Dermatofibromas are hard solitary slow-growing papules (rounded bumps) that may appear in a variety of colors, usually brownish to tan; they are often elevated or pedunculated.
 
==Historical Perspective==


==Classification==
==Classification==
Dermatofibromas are classed as benign skin lesions, meaning that they are completely harmless, though they may be confused with a variety of subcutaneous tumours. Deep penetrating dermatofibromas may be difficult to distinguish, even histologically, from rare malignant fibrohistocytic tumours like [[dermatofibrosarcoma protuberans]].


==Pathophysiology==
==Pathophysiology==


Dermatofibromas are composed of disordered [[collagen]] laid down by [[fibroblasts]].
==Causes==


==Differential Diagnosis==
==Differentiating Xyz from Other Diseases==
Deep penetrating dermatofibroma may be difficult to distinguish, even histologically, from rare malignant fibrohistocytic tumors e.g [[dermatofibrosarcoma protuberans]]


==Epidemiology and Demographics==
==Epidemiology and Demographics==
Dermatofibromas occur most often in women; the male to female ratio is approximately 1:4. The age group in which they most commonly occur is twenty to forty-five years.


==Risk Factors==
==Risk Factors==


The risk factors for development  of dermatofibroma include:
==Screening==
 
==Natural History, Complications, and Prognosis==
 
 
==Diagnosis==
===Diagnostic Study of Choice===
 
===History and Symptoms===


*Thorn prick
===Physical Examination===


*Insect bite
===Laboratory Findings===


==Complications==
===Electrocardiogram===


In rare cases, [[basal cell carcinoma]] may develop in a dermatofibroma.
===X-ray===


==History and symptoms==
===Echocardiography and Ultrasound===


Although typical dermatofibromas cause little or no discomfort, [[itching]] and tenderness can occur.
===CT scan===


==Physical Examination==
===MRI===


Dermatofibromas can be found anywhere on the body, but most often they are found on the legs and arms.
===Other Imaging Findings===
 
===Other Diagnostic Studies===


==Treatment==
==Treatment==
===Medical Therapy===
=== Interventions ===
===Surgery===
===Primary Prevention===


Most physicians will advocate treatment only if the lesion is in the way of shaving, or is becoming irritated by clothing.
===Secondary Prevention===


==Surgery==
==References==
{{reflist|2}}


Removal can be done surgically with [[local anesthesia]], but, since much of the growth extends beneath the surface of the skin, the scar may be larger and more noticeable than the original tumor.
[[Category:Dermatology]]
[[Category:Dermatology]]
[[Category:Disease]]
[[Category:Disease]]

Revision as of 21:48, 6 June 2019


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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1], Associate Editor(s)-in-Chief: Homa Najafi, M.D.[2]Faizan Sheraz, M.D. [3]

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Xyz from Other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications, and Prognosis

Diagnosis

Diagnostic Study of Choice

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

X-ray

Echocardiography and Ultrasound

CT scan

MRI

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Interventions

Surgery

Primary Prevention

Secondary Prevention

References