Search Results for: dermatofibroma

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),…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Dermatofibroma with “monster” cells Malignant fibrous histiocytoma 1. Symmetric 1. Asymmetric 2. Vertical orientation sometimes 2. No vertical orientation 3. Vasculature prominent 3. Vasculature not prominent 4. Few, if any, mitotic…

An unusual lesion on the nose: microvenular hemangioma

An unusual lesion on the nose: microvenular hemangioma

…mic other benign and malignant vascular lesions. Even some nonvascular tumors and inflammatory lesions, including leiomyoma, dermatofibroma, leukemia and lymphoma with cutaneous involvement, lymphomatoid papulosis, papulonecrotic tuberculoid, and…

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

Differential Diagnosis

Dermatofibroma Desmoplastic Spitz’s nevus 1. Acanthotic epidermis often associated with induction of folliculo-sebaceous units 1. Little or no acanthosis; no induction of folliculo-sebaceous units 2. Epidermis often thinned above the center…

Differential Diagnosis in Dermatopathology

Discussions

…inflammatory process, a largely fibrocytic response to injury or of fascia, (or the subcutaneous fat at times), analogous to dermatofibroma, an inflammatory process that results from injury to the dermis (and the uppermost part of the subcutaneous…