Search Results for: dermatofibroma

Prediction without Pigment: a decision algorithm for non-pigmented skin malignancy

Prediction without Pigment: a decision algorithm for non-pigmented skin malignancy

…dahl et al.] Abbreviations used: BCC – basal cell carcinoma; SCC – squamous cell carcinoma; KA – keratoacanthoma; DF – dermatofibroma; LPLK – lichen-planus-like-keratosis (benign lichenoid keratosis); PG – pyogenic granuloma; IEC –…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…changes pictured are a response to external trauma akin to those in an early stage of a variety of scarring processes, e.g., dermatofibroma. 10.70.2A: Panniculitis, lobular + 10.70.2B: Interwoven fascicles of plump oval and spindle-shaped fibrocytes…

Histologic Diagnosis of Inflammatory Skin Diseases

Leprosy

…f lepromatous leprosy is known as “histoid” because the findings histopathologic resemble those of histiocytoma (dermatofibroma). In actuality, histoid leprosy is merely a lesion of lepromatous leprosy in the process of resolving slowly…

Differential Diagnosis in Dermatopathology

Nodular fasciitis vs. Malignant fibrous histiocytoma

…, and that proceeds through stages of granulation tissue with numerous extravasated erythrocytes, granulomatous inflammation, and fibrosis. As is the case for other fibrosing dermatitides, such as scars and keloids, papules and nodules of…

Differential Diagnosis in Dermatopathology

Images

Dermatofibroma Dermatofibrosarcoma protuberans…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Dermatofibroma Dermatofibrosarcoma protuberans 1. Rather well-circumscribed, small lesion, often contained wholly in a 4.0 mm biopsy specimen 1. Poorly circumscribed broad lesion, practically never contained wholly in a 4.0 mm biopsy specimen 2….

Melanoma and satellite blue papule

Melanoma and satellite blue papule

…like seborrheic keratosis, including lichen planus-like keratosis, hemangioma, pigmented basal cell carcinoma, hemosiderotic dermatofibroma, Kaposi sarcoma and angiosarcoma. Finally, exogenous dermal blue pigmentation, such as ink tattoo, radiation…

Histologic Diagnosis of Inflammatory Skin Diseases

Necrobiotic xanthogranuloma

…necrobiotic xanthogranuloma is not related to necrobiosis lipoidica, despite the similarities in nomenclature (any more than dermatofibroma is connected in any way to dermatofibrosarcoma protuberans or sclerema neonatorum to scleredema adultorum),…