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A dermatofibroma, or benign fibrous histiocytomas, is a benign nodule in the skin, typically on the legs, elbows or chest of an adult. [3] It is usually painless. [3] It usually ranges from 0.2cm to 2cm in size but larger examples have been reported. [3] It typically results from mild trauma such as an insect bite. [3]
The hard fibroma (fibroma durum) consists of many fibres and few cells, e.g. in skin it is called dermatofibroma (fibroma simplex or nodulus cutaneous). [2] A special form is the keloid, which derives from hyperplastic growth of scars.
Dermatofibroma Pleomorphic fibroma of the skin Epithelioid cell histiocytoma: von Kossa: Calcium: Calcinosis cutis Pseudoxanthoma elasticum: Wade: Leprosy: Wright: Blood cells: Transient neonatal pustular melanosis [nb 3] Erythema toxicum neonatorum [nb 4] > Granuloma inguinale: Ziehl–Neelsen stain: Leprosy [nb 1]
Causes of melanoma. Ultraviolet light exposure from the sun or from tanning beds causes most melanomas. Melanoma may appear at a spot where you have an existing mole. But if an unusual spot shows ...
The World Health Organization in 2020 classified the fibro sarcomatous DFSP (DFSP-FS) variant (also termed dermatofibrosarcoma protuberans, fibro sarcomatous) of the dermatofibrosarcoma protuberans as a specific form of the intermediate (rarely metastasizing) fibroblastic and myofibroblastic tumors and other variants of this disorder as a specific form of the intermediate (locally aggressive ...
In an earlier (2014) retrospective review of 225 cases treated for DFSP-FS, 29.8% developed post-surgical recurrent disease (median time after surgery: 0.9-7.8 years), 14.4% had or developed metastatic disease, and 14.7% died from their disease (median time after surgery: 14.7 years).
Epithelioid cell histiocytoma is a rare skin condition that is considered to be a variant of a dermatofibroma. [1]
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