Dermatofibroma
Dermatofibroma
Medical condition
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] Risk factors for developing multiple dermatofibromas include lupus, HIV, blood cancer and some medicines that weaken immunity.[3]
It is usually diagnosed by its appearance, but a biopsy may be required.[3] Other bumps such as granular cell tumor, melanoma, clear cell acanthoma and dermatofibrosis lenticularis disseminata may look similar.[3] Usually no treatment is needed.[3] It can remain unchanged for years but can resolve spontaneously.[3]