Pemphigus vulgaris is an autoimmune mucocutaneous disease, characterized by vesiculobullous lesions. Herpes simplex virus (HSV) infection is common in the oral cavity and the coexistence of pemphigus vulgaris and HSV infection has been reported by some authors. In this work, we report a case of a patient with multiple lesions involving several areas of the oral mucous membrane. Based on scraping cytology and incisional biopsy findings, the diagnosis was pemphigus vulgaris associated with HSV infection. We call attention to the uncommon association of both diseases and the cytological identification of two cell populations with different and characteristic morphological aspects, able enough to establish the correct diagnosis and define an appropriate therapeutic approach.
Pemphigus; Herpes simplex; Cytopathology; Bucal mucosa
