severe lower gastrointestinal bleeding, small intestine lymphoma: a case report

the patient was a 67-year-old female who presented with severe rectal bleeding since three days prior to hospital admission. she complained of mild abdominal pain. rectal examination revealed the presence of fresh blood and a clot. she had a normal upper endoscopy. a colonoscopy showed a large clot with bloody secretions up to the cecum, with no obvious origin. because of the severity of bleeding, a laparotomy was performed. resection included large areas of the ileum and jejunum which were involved. pathology report was remarkable for diffuse large b cell lymphoma.