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…

Differential Diagnosis in Dermatopathology

Discussions

…that many years of evolution and devolution are required for a Spitz’s nevus to become desmoplastic. Parenthetically, fibroplasia in a melanocytic nevus is not limited to Spitz’s nevus. It is seen in Clark’s nevi…

Histologic Diagnosis of Inflammatory Skin Diseases

Acroangiodermatitis of Mali/Stewart-Bluefarb syndrome

…h thick walls and plump endothelial cells Increased number of fibrocytes in the region of the proliferated vessels; variable fibroplasia Extravasated erythrocytes and hemosiderin in the vicinity of the altered blood vessels Infiltrate of lymphocytes…

Histologic Diagnosis of Inflammatory Skin Diseases

Traumatic fat necrosis

…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 clinicopathologic Nodules result from…

Histologic Diagnosis of Inflammatory Skin Diseases

Subcutaneous Fat: Panniculitis

…mp;B. A distinctive panniculitis, at first septal and then lobular, 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…

Histologic Diagnosis of Inflammatory Skin Diseases

Lymphedema

…lled venules oriented vertical to the skin surface Knobby protuberances covered by hyperkeratotic, acanthotic epidermis Late Fibroplasia throughout most of the dermis Dilated thick-walled venules oriented vertical to the skin surface Knobby…

Histologic Diagnosis of Inflammatory Skin Diseases

Lichen planus-like keratosis

…shable from complete regression of 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…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…one example, there is no relationship whatsoever between Dupuytren’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…