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 ar…

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 ar…

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 ar…

Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.43.1A: Nodular dermatitis, granulomatous + 10.43.1B: Interstitial and palisaded array of histiocytes around loci of deposits of mucin and degeneration of collagen = Granuloma annulare This is a presentation stereotypical of gran…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Nodular and Diffuse Dermatitis

…ablishing the condition as a manifestation of Majocchi’s granuloma relatively early in the course of it. Figure 5.182 A&B. A nodule in the form of a foreign body granuloma. This large solitary nodule represents a foreign body reaction co…

Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Langerhans’ Cell Granulomatosis?

…ease, Hand –Schuller-Christian disease, and eosinophilic granuloma of bone…” Weedon D. Skin Pathology, 2nd ed. Sydney: Churchill Livingstone: 2002:1079. The term Langerhans’ cell granulomatosis is in vogue for diseases chara…

Histologic Diagnosis of Inflammatory Skin Diseases

Errors and Reasons

…us-cell carcinoma analogous to solar keratosis. Error: Actinic granuloma is different from granuloma annulare. Reason: The features of it clinical and the findings of it histopathologic are those of granuloma annulare, the elastophagocytosis claimed…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Subcutaneous Fat: Panniculitis

…mp;B), or in the panniculus adiposa alone (“subcutaneous granuloma annulare,” which, not too many years ago, was considered, wrongly, to be “pseudorheumatoid nodule”) (Fig. 5.395 A&B). Necrobiosis lipoidica, like granuloma

Histologic Diagnosis of Inflammatory Skin Diseases

Applicable Terms

…mate example of granulation tissue in skin is seen in pyogenic granuloma at an early stage of it, that title being a misnomer because the condition is neither pyogenic nor a granuloma; it, fundamentally, is a proliferation of venules and capillaries…

Histologic Diagnosis of Inflammatory Skin Diseases

Study By Disease

…s host disease (Quiz #221) Graft vs. host reaction (Quiz #331) Granuloma annulare (Quiz #43) Granuloma annulare (Quiz #59) Granuloma annulare (Quiz #235) Granuloma annulare (Quiz #302) Granuloma annulare (Quiz #303) Granuloma annulare (Quiz #304) Gra…