A middle-aged man developed multiple flat ulcers in his palate, tongue, and buccal mucosa. The lesions measured approximately 1 cm in diameter and were preceded briefly by bullae. The lesions have been persistent for 6 weeks. He has no skin, eye, or genital lesions. Biopsy shows acantholysis with intraepithelial separation. He most likely has:

Question

Quizplus · Accepted Answer

The description and biopsy findings are indicative of pemphigus vulgaris, which is not listed among the options provided. Pemphigus vulgaris is characterized by acantholysis leading to intraepithelial blisters and ulcers, primarily affecting mucous membranes.

A Middle-Aged Man Developed Multiple Flat Ulcers in His Palate