Chronic Fibrosing Vasculitis: A Histologic Finding in a Case of Long-Established Erythema Elevatum Diutinum

Identifying histopathologic features of erythema elevatum diutinum and granuloma faciale

“…The two diseases have overlapping histopathologic findings including leukocytoclastic vasculitis, fibrosis, and the presence of macrophages, 3 making clinical correlation important in differentiating these disorders. EED classically presents with red‐brown or xanthomatous papules or plaques that are symmetrically distributed over the extensor surfaces 4,5 . GF presents with red‐brown papules or plaques, but is often confined to the head, specifically the forehead, cheeks, and ears 1 .…”