Primary non-Hodgkin lymphoma of the vulva in an immunocompetent patient.

The primary non-Hodgkin lymphoma of the vulva is a very rare pathological entity. We report a case of 37-year-old patient that presented a germinating ulcerating tumor in the small right vulva. The histology objectified a B lymphoma with a positive CD20 reaction. The patient underwent three typical chemotherapy sessions by rituximab-cyclophosphamide, doxorubicin, vincristine, and prednisone, followed by external radiotherapy on the pelvis and bilateral inguinal lymph nodes areas with an excellent answer and survival without particular events within 36 months of recession. Through this case report, we discuss the diagnostic features of this pathological entity, considering diagnosis and treatment are different compared to other tumors that are commonly found in the vulva.