Ileovesical fistula secondary to chemotherapy for follicular non-Hodgkin lymphoma: a case report and review of the literature.

Enterovesical fistulas are rare complications of malignancies, diverticulitis, inflammatory bowel diseases, radiotherapy, and traumas involving the colorectal and pelvic region. In this study, an ileovesical fistula that occurred during chemotherapy for non-Hodgkin lymphoma is presented. The patient had acute abdomen and multiple comorbidities, and ileovesical fistula was diagnosed during the operation. The affected intestinal segment was resected, and an end-to-end anastomosis was performed with a primary bladder repair. This is a reliable treatment method for such cases.