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References in periodicals archive ?
The differential diagnosis of a dermatofibroma (Table) includes neurilemmoma (or schwannoma) (8), neurofibroma, piloleiomyoma, cyst, hypertrophic scar, and tophus.
Histologically, however, a dermatofibroma shows an area of focal dermal fibrosis accompanied by overlying epidermal thickening and hyperpigmentation.
Reference 1 1, Patient 1 2 1, Patient 5 3 1, Patient 4 4 1, Patient 3 5 1, Patient 2 6 Present report (a) The submitted clinical diagnoses were dermatofibroma (four cases), Spitz nevus (two cases), nevus (one case), basal cell carcinoma (one case), and "lesion" (one case); from cases 1 to 5, seven clinical diagnoses were submitted, and our patient (case 6) had two clinical diagnoses.
Basal cell carcinomas and basal cell carcinoma-like changes overlying dermatofibromas.
It has also been demonstrated recently in the majority of xanthomatous skin lesions, (8) atypical fibroxanthomas, typical dermatofibromas, and occasional epithelioid dermatofibromas.
Immunostains in Soft Tissue Neoplasms Stain Pattern Application CD34 Cytoplasmic staining Dermatofibrosarcoma protuberans, blood vessels, malignant fibrous histio-cytoma, epithelioid sarcoma Factor Cytoplasmic staining Dermatofibroma, XIII (a) juvenile xanthogranuloma, multicentric reticulohistiocy- tosis, radiation dermatitis Smooth Cytoplasmic staining Glomus tumor, muscle leiomyoma, actin dermatomyofibroma, leiomyosarcoma Desmin Cytoplasmic staining Found in striated and smooth muscle Vimentin Cytoplasmic staining Retained in mesenchymally derived cells, fibroblasts, endothelial cells, macrophages Muscle- Cytoplasmic staining Found in striated specific and smooth muscle actin Table 3.
Dermatofibroma Epidermal hyperplasia Peripheral collagen trapping Factor [13a.
Radiologically, the differential diagnosis includes neurogenic tumors, minor salivary gland tumors, dermoid or epidermoid tumors, hemangiomas, sarcoidosis, aggressive fibromatosis, dermatofibromas, fibrosarcomas, and malignant histiocytomas.
However, HHV8 is not entirely limited to KS, and as such it has been detected in some angiosarcomas, haemangiomas and dermatofibromas [93].
Early lesions can easily be mistaken as purpura, hematomas, angiomas, dermatofibromas, or nevi.
Other skin growths, such as wart-like keratoses (that may be flat or elevated), may tend to itch or be unsightly; others, called dermatofibromas, may result from bites or other skin injuries that produce scarlike tissue of various colors.