Search Results for: fibroplasia

Differential Diagnosis in Dermatopathology

Dermatofibroma vs. Desmoplastic Spitz’s nevus

An inflammatory process that develops secondary to trauma, usually in the form of a penetrating injury or rupture of a follicle, and that proceeds through stages of granulation tissue with numerous extravasated erythrocytes, granulomatous inflammati…

Differential Diagnosis in Dermatopathology

Discussions

…uence of the proliferation of fibrocytes and the accompanying fibroplasia, some normal folliculo-sebaceous units may be destroyed, but eccrine structures tend to be spared. The epidermis above the process pathologic in the dermis may be acanthotic, h…

Histologic Diagnosis of Inflammatory Skin Diseases

Acroangiodermatitis of Mali/Stewart-Bluefarb syndrome

…ibrocytes in the region of the proliferated vessels; variable fibroplasia Extravasated erythrocytes and hemosiderin in the vicinity of the altered blood vessels Infiltrate of lymphocytes of variable density Epidermis sometimes acanthotic and hyperker…

Histologic Diagnosis of Inflammatory Skin Diseases

Traumatic fat necrosis

…ges present in fat lobules and in the dermis sometimes Slight fibroplasia in conjunction with patchy granulomatous inflammation in fat lobules Late Extensive fibroplasia in patchy distribution in fat lobules Few foam cells residual Correlation clinic…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous Fat: Panniculitis

…lar, too: necrobiosis lipoidica. Widening of fibrous septa by fibroplasia leads inevitably to obliteration of some lobules and constriction markedly of others. Unlike the situation in erythema nodosum, changes granulomatous similar to those in the su…

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphedema

…berances covered by hyperkeratotic, acanthotic epidermis Late Fibroplasia throughout most of the dermis Dilated thick-walled venules oriented vertical to the skin surface Knobby protuberances more strikingly papillated and more hyperkeratotic Prolife…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus-like keratosis

…, both being characterized by a papillary dermis thickened by fibroplasia and joined by telangiectases, sparse infiltrates of lymphocytes, and melanophages. The presence of numerous individual necrotic keratocytes in the lower part of the epidermis a…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…ren’s contracture and desmoid tumor, the former being a fibroplasia, the latter a sarcoma. Error: Figurate erythemas constitute a group of related diseases. Reason: None of the so-called figurate erythemas is related to one another; the disease…