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

Images

Dermatofibroma with “monster” cells Malignant fibrous histiocytoma…

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…

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…

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…

Multiple agminated lesions with homogeneous blue pattern on dermoscopy

Multiple agminated lesions with homogeneous blue pattern on dermoscopy

…y present large vessels in the periphery [3]. Eccrine acrospiroma is surrounded by a discrete pigment network [4], like some dermatofibromas [5]. Oiso et al [6] observed another dermatoscopic sign: cystic openings in the epidermis, a feature that…