Abstract

We present the case of a woman who has had perianal ulcers for several years. Since no improvement was achieved with topical treatments, a biopsy was performed, showing a dense lymphoplasmocellular infiltrate. After ruling out other differentials, a diagnosis of plasma cell mucositis was made and intralesional betametasone was attempted, with almost complete resolution of the lesions in a few days and no recurrence in one-year follow-up.

Keywords

plasma cell mucositis, idiopatic lymphoplasmocellular mucositis-dermatitis, zoon mucositis, anti-treponema antibody, exudation, symmetrcal, immunodeficiency virus