RT Journal Article SR Electronic T1 Gastric ulcers and swollen kidneys: a rare diagnosis complicating Crohn's disease JF BMJ Case Reports FD BMJ Publishing Group Ltd SP bcr0320102809 DO 10.1136/bcr.03.2010.2809 VO 2010 A1 C Ormerod A1 S Sarkar A1 B Woodcock A1 D White A1 S Lal YR 2010 UL http://casereports.bmj.com/content/2010/bcr.03.2010.2809.abstract AB We present a case of a 48-year-old woman with Crohn's colitis admitted with abdominal pain and fever. She had been started on azathioprine 6 months before presentation and had received three doses of infliximab. Abdominal CT scan revealed a liver abscess. Azathioprine was stopped and antibiotics started. She was subsequently discharged with follow-up imaging planned. She presented 3 weeks later with haematemesis. Gastroscopy revealed multiple gastric ulcers. A repeat CT scan showed bilateral renal masses and a renal biopsy was arranged. Gastric and renal biopsies were consistent with B cell lymphoma. Chemotherapy was started and resulted in improvement in CT scan findings as well as ulcer healing.