dermatofibroma

(redirected from dermatofibromas)
Also found in: Dictionary.
Related to dermatofibromas: keratosis pilaris, cherry angioma, lipomas

dermatofibroma

 [der″mah-to-fi-bro´mah]
a fibrous tumorlike nodule of the skin, usually on the extremities and especially the legs. Its etiology is not known, but it is most likely a neoplastic disorder. Although it is benign, itching and pain can be a source of severe discomfort.

der·ma·to·fi·bro·ma

(der'mă'tō-fī-brō'mă),
A slowly growing benign skin nodule consisting of poorly demarcated cellular fibrous tissue enclosing collapsed capillaries, with scattered hemosiderin-pigmented and lipid macrophages. The following terms are considered by some to be synonymous with, and by others to be varieties of, dermatofibroma: sclerosing hemangioma (2), fibrous histiocytoma, nodular subepidermal fibrosis.

dermatofibroma

[dur′mətōfībrō′mə] pl. dermatofibromas, dermatofibromata
Etymology: Gk, derma + L, fibra, fiber, oma, tumor
a cutaneous nodule that is painless, round, firm, gray or red, elevated, and commonly found on the extremities. No treatment is required. Also called fibrous histiocytoma.

benign fibrous histiocytoma

A benign tumour composed of primitive mesenchymal cells (macrophages or histiocytes) seen in the skin and soft tissues of the legs of young to middle-aged patients, more commonly women, usually in relation to skeletal muscle.
 
Management
Excision.

der·ma·to·fi·bro·ma

(dĕr'mă-tō-fī-brō'mă)
A slowly growing benign skin nodule consisting of poorly demarcated cellular fibrous tissue enclosing collapsed capillaries, with scattered hemosiderin-pigmented and lipid macrophages. The following terms are considered by some to be synonymous with, and by others to be varieties of, dermatofibroma: sclerosing hemangioma, fibrous histiocytoma, nodular subepidermal fibrosis.
Enlarge picture
DERMATOFIBROMA
Enlarge picture
DERMATOFIBROMA

dermatofibroma

(der?ma-to-fi-bro'ma) [? + L. fibra, fiber, + Gr. oma, tumor]
A firm but freely movable benign skin nodule, often found on the lower extremities.
See: illustration; dimple signillustration

dermatofibroma

; histiocytoma cutis; fibrous histiocytoma sclerosing haemangioma: common benign fibroma of extremities; flat/slightly raised flesh-coloured/yellowish-brown, firm/hard, non-progressive, isolated lesions usually <1 cm in diameter; palpable bulk of lesion extends beyond its visible outline

dermatofibroma

a fibrous tumor-like nodule of the skin.
References in periodicals archive ?
In most cases, dermatofibromas can be diagnosed clinically.
A few case reports describe metastasis of cellular dermatofibromas despite excision of the primary lesion (4-6).
Additionally, erythema elevatum diutinum, a leukocytoclastic vasculitis of the skin that resolves with fibrosis, can present with lesions that mimic dermatofibromas (9).
When it represents a reaction to subjacent neoplasms, epidermal PEH is principally seen in conjunction with granular cell tumor, dermatofibroma, xanthogranuloma, dermatofibrosarcoma protuberans, or melanocytic proliferations, such as Spitz nevus and spindle cell nevus of Reed (21-26) (Figure 2, A and B).
Similarly, basaloid PEH (eg, in association with dermatofibroma or nevus sebaceous) can be distinguished from BCC by attention to the supporting stroma.
The appearance of the collagen bundles in dermatofibromas is referred to as "keloidal.
The histologic presentation of this lesion mimics dermatofibromas, desmoplastic cellular blue nevi, metastatic carcinomas, and malignant melanomas.
Hyalinizing Spitz nevus is a benign lesion whose histologic features may mimic dermatofibroma, desmoplastic cellular blue nevus, metastatic carcinoma, and malignant melanoma.
Evaluation of CD10 and procollagen 1 expression in atypical fibroxanthoma and dermatofibroma.
Cutaneous balloon cell dermatofibroma (fibrous histiocytoma).
51,52) It also is present in periadenexal mesenchymal cells of normal dermis and in tumors, such as dermatofibroma, to a lesser extent in dermatofibrosarcoma protuberans, (53) and in melanoma.
D2-40anovel immunohistochemical stain as a complementory or possible replacement to factorXIIIa and CD34 immunoperoxidase stains in differentiating dermatofibroma and dermatofibrosarcoma protuberance.