An Update on Inflammatory Dermatopathology.

Inflammatory dermatopathology encompasses a wide array of nonneoplastic dermatologic conditions. This article will summarize the relevant clinical and histopathologic findings of rare and emerging inflammatory dermatologic diseases broadly categorized into postradiation morphea, reactive infectious dermatoses, vasculopathies and vasculitides, annular erythemas, and neutrophilic dermatoses.