Bowel perforation during chemotherapy for non-hodgkin's lymphoma.

Bowel perforation in patients with primary malignant lymphoma usually occurs at the site of tumor. A 78 year-old man underwent chemotherapy for malignant lymphoma. He presented with abdominal pain. An emergency operation was performed under a diagnosis of panperitonitis. At laparotomy, an anal-side perforation approximately 20 cm from the Treiz ligament was observed. Drainage and partial resection of the jejunum was performed. Histopathologic examination demonstrated that there was no characteristic finding of malignant lymphoma around the perforation site in the case. Perforation of the small intestine is one of the most critical complications during the chemotherapy for malignant lymphoma. In cases of chemotherapy for malignant lymphoma, especially systemic administration, we should keep in mind the possibility of perforation of the small intestine. Fortunately, emergency surgery saved the patient presented in this report. Early diagnosis and treatment are important to improve prognosis of bowel perforation in patients with primary malignant lymphoma.