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Resolving Quandaries in Dermatology, Pathology & Dermatopathology

Figurate Erythemas?

“Erythema in Patches and Figured Erythema—These consist of congestive spots, patches, or surfaces of irregular shape, discoidal or of variable configuration (erythema marginatum or annulare, etc.). Although sometimes infectious, this t…

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Pustular Dermatitis

See Fig. 5.307 A&B. Figure 5.307 Pustular dermatitis. A. Infundibular. B. Surface epidermal. Although most pustules in skin are housed in infundibular epidermis (Fig. 5.308 A&B), many are lodged in surface epidermis (Fig. 5.309 A&B)….

Histologic Diagnosis of Inflammatory Skin Diseases

Identification of Basic Patterns: Skin: Vasculitis

See Fig. 5.218 A&B. Figure 5.218 Vasculitis. A. Small vessel. B. Large vessel. Before a reasoned and reasonable method for diagnosis histopathologic of vasculitis in skin and subcutaneous fat can be formulated, a definition of vasculitis must…

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…

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