Histologic Diagnosis of Inflammatory Skin Diseases

Images

Images 10.38.1A: Pustular dermatitis, infundibular + 10.38.1B: A hair containing hyphae in an abscess = Suppurative infundibulitis of dermatophytic cause (Majocchi’s granuloma) The hair was spewed into the dermis when an infundibul…

Clinical Case Studies

Rhinophyma with Basal Cell Carcinoma

INITIAL PRESENTATION An 83-year-old Greek male presented with pronounced central facial telangiectases, hypertrophy of the sebaceous skin of the nose resulting in a bulbous nasal tip appearance, and a growing nodule on the right nasal dorsum. (Figur…

Histologic Diagnosis of Inflammatory Skin Diseases

Seborrheic dermatitis

Seborrheic dermatitis Synonyms Seborrhoeic dermatitis Seborrheic eczema Unna disease Presentation stereotypical Age and sex Young adults especially and males in particular Distribution of lesions Face, scalp, retroauricular area, and V region of the…

Histologic Diagnosis of Inflammatory Skin Diseases

Keloid

Keloid Presentation stereotypical Age and sex Young adults especially, both sexes, more often in darkly pigmented individuals, especially Africans and African-Americans Distribution of lesions Sternal region, ear lobes, shoulders, and the upper part…

Differential Diagnosis in Dermatopathology

Images

Acne vulgaris, erythematous papule Rosacea, erythematous papule…

Histologic Diagnosis of Inflammatory Skin Diseases

Factitious dermatitis and panniculitis

Factitious dermatitis and panniculitis Synonyms Self-induced skin disease Pathomimicry Dermatitis artifacta Munchhausen syndrome Dermatitis passivata Factitial lymphedema (Secretan syndrome) Malingering Self-mutilation Presentation stereotypical Age…

Differential Diagnosis in Dermatopathology

Differential Diagnosis

Acne vulgaris, erythematous papule Rosacea, erythematous papule 1. Only one follicle involved usually in a 4 mm biopsy specimen 1. Nearly all follicles involved usually in a 4 mm biopsy specimen 2. Suppurative infundibulitis prominent 2. Suppu…