title: Hematochezia due to a renal cell carcinoma metastasis to the rectum: A case report and review of the literature.
abstract: While primary tumors of the GI tract are a frequent cause of gastrointestinal bleeding, metastatic lesions to the bowel uncommonly present with hematochezia, and rectal involvement is particularly rare. We describe the case of a 70-year-old man with an exceedingly late recurrence of renal cell carcinoma who presented with hematochezia due to a metastasis in the rectum. This is the first report to include both endoscopic and endoscopic ultrasound images of such a lesion. In the correct clinical setting, metastatic disease to the rectum should be included on the differential diagnosis of lower gastrointestinal bleeding.
authors.affiliation: Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7080, USA. edellon@unch.unc.edu
authors.forename: Evan S
authors.initials: ES
authors.lastname: Dellon
authors.forename: Lisa M
authors.initials: LM
authors.lastname: Gangarosa
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000150:complications* / Q000556:secondary*; D006471:Gastrointestinal Hemorrhage / Q000209:etiology*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D012004:Rectal Neoplasms / Q000150:complications* / Q000556:secondary*