EBV-Positive Mucocutaneous Ulcer

**Semantic type:** Neoplastic Process

**Definition:** A rare Epstein-Barr virus-positive B-cell lymphoproliferative disorder that affects mucosal sites (including oral mucosa, palate, tonsils, and gastrointestinal tract) and skin. It presents with well-circumscribed, often painful ulcers. It is associated with immune suppression, including age-related and drug-induced immunosuppression. In the majority of cases the lesions regress either spontaneously or following withdrawal of the immunosuppression therapy.

**Synonyms:** - EBVMCU - Epstein-Barr Virus-Positive Mucocutaneous Ulcer - Epstein-Barr Virus-Positive Mucocutaneous Ulcer