Search Results for: granuloma

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

Xanthogranuloma/Reticulohistiocytic granuloma

A red, often ulcerated, boggy papule that represents a hyperplasia of small cutaneous vessels which are “fed” by an arteriole in the subcutaneous fat, the lesion resulting consistently from external trauma, usually in the form of a…

Histologic Diagnosis of Inflammatory Skin Diseases

Granuloma annulare

A red, often ulcerated, boggy papule that represents a hyperplasia of small cutaneous vessels which are “fed” by an arteriole in the subcutaneous fat, the lesion resulting consistently from external trauma, usually in the form of a…

Histologic Diagnosis of Inflammatory Skin Diseases

Pyogenic granuloma

A red, often ulcerated, boggy papule that represents a hyperplasia of small cutaneous vessels which are “fed” by an arteriole in the subcutaneous fat, the lesion resulting consistently from external trauma, usually in the form of a…

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….

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…is pathognomonic for any disease. Figure 3.17 Patterns of granulomatous inflammation. A. Sarcoidal granuloma. B. Tuberculoid granuloma. C. Palisaded granuloma. D. Suppurative granuloma. A fifth pattern is interstitial granuloma. Figure 3.18 A….