The anal region is an unusual site of Hailey-Hailey disease. It manifests with lichenoid lesions with crusted erosions around the anus. It should be differentiated from condylomata acuminata, extramammary Paget disease, and bowenoid papulosis.
Keywords: Hailey–Hailey disease; acantholysis; condylomata acuminata; lichenoid lesions; perianal.
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