A case of malignant lymphoma associated with pancreatic masses in which endoscopic ultrasound-guided fine-needle biopsy was useful for diagnosis

Abstract

A 38-year-old man with fever and right hip pain presented to our hospital. Abdominal ultrasound and abdominal magnetic resonance imaging revealed multiple pancreatic masses and he was admitted to our hospital. Thoraco-abdominopelvic computed tomography revealed pericardial effusion, left ureteral dilatation, a large mass on the left iliopsoas muscle, and right iliac bone erosion. Malignant lymphoma was suspected due to the elevated level of soluble IL-2 receptors. Since there was no evidence of superficial lymph node enlargement, endoscopic ultrasound-guided fine-needle biopsy (EUS-FNB) of the pancreatic masses was performed and the diagnosis of peripheral T-cell lymphoma (not otherwise specified) was made. EUS-FNB is considered to be useful for the diagnosis of malignant lymphoma.