Large B-cell lymphoma of the uterine corpus: case report with immunohistochemical and molecular study

Primary lymphoma of the uterine corpus (PLUC) is an extremely rare neoplasm. We report a case of PLUC in a 78-year-old woman with vaginal bleeding without hepatosplenomegaly, adenopathies, or bone marrow infiltration, classified as stage I. A diagnosis of diffuse large B-cell lymphoma was made in endometrial curettage tissue. Immunohistochemical study showed tumoral cells of B-cell nature. Two different polymerase chain reaction (PCR) techniques showed immunoglobulin heavy chain gene rearrangement and we could not demonstrate, with PCR technique, either Epstein-Barr virus or papilloma virus infection. Total hysterectomy with bilateral salpingo-oophorectomy was carried out and adjuvant chemotherapy was given. She was alive and free of disease after a follow-up period of 7 years, and the patient has been in perfect health.