Search Results for: granuloma

Differential Diagnosis in Dermatopathology

Interstitial granuloma annulare vs. Interstitial mycosis fungoides

A systemic inflammatory process involving venules by deposits of fibrin within their wall in conjunction with neutrophils and nuclear “dust” of neutrophils in the dermis and, at times, the subcutaneous fat. The clinical manifestations…

Histologic Diagnosis of Inflammatory Skin Diseases

Majocchi’s granuloma

Majocchi’s granuloma Synonyms Nodular granulomatous perifolliculitis Tinea der unterschenkel Perifollicular granuloma Trichophytic granuloma Comment The term “Majocchi’s granuloma” is misleading because it implies that the…

Histologic Diagnosis of Inflammatory Skin Diseases

Silica granuloma

…crystalline, barely visible, in some multinucleate histiocytes Differential diagnosis histopathologic Sarcoidosis, zirconium granuloma, and beryllium granuloma are unassociated with particles of foreign bodies in sections of tissue viewed…

Histologic Diagnosis of Inflammatory Skin Diseases

Granuloma annulare

A systemic inflammatory process involving venules by deposits of fibrin within their wall in conjunction with neutrophils and nuclear “dust” of neutrophils in the dermis and, at times, the subcutaneous fat. The clinical manifestations…

Histologic Diagnosis of Inflammatory Skin Diseases

Xanthogranuloma/Reticulohistiocytic granuloma

A systemic inflammatory process involving venules by deposits of fibrin within their wall in conjunction with neutrophils and nuclear “dust” of neutrophils in the dermis and, at times, the subcutaneous fat. The clinical manifestations…

Histologic Diagnosis of Inflammatory Skin Diseases

Pyogenic granuloma

A systemic inflammatory process involving venules by deposits of fibrin within their wall in conjunction with neutrophils and nuclear “dust” of neutrophils in the dermis and, at times, the subcutaneous fat. The clinical manifestations…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

…ed collagen = Granuloma annulare, perforating In rare instances, degenerated collagen and mucin in the center of a palisaded granuloma of granuloma annulare are transported from the uppermost part of the dermis through the epidermis to the surface…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Langerhans’ Cell Granulomatosis?

…crophages and especially epithelioid ones. Because Langerhans’ cells are not macrophages, there cannot be an authentic granuloma of Langerhans’ cells (or a granulomatosis). Moreover, clonal neoplastic processes are not granulomatoses….

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…ue, a cast that is characteristic, too, of “epithelioid” melanocytes of Spitz’s nevus; reticulohistiocytic granuloma is a type of xanthogranuloma. Error: Heliodermatitis characterizes correctly the condition being specified….