Abeysekera KWM, et al. - Via this case report, researchers sought to raise awareness among endoscopists regarding a rare benign disorder that may be encountered during endoscopy. Clinicians may opt for biopsy, which could result in a catastrophic gastrointestinal hemorrhage. As part of the UK national bowel cancer screening program, a 66-year-old asymptomatic Caucasian male was referred for colonoscopy with a positive fecal occult blood test. A morphology highly consistent with diffuse cavernous haemangioma of the rectum (DCHR) was suggested by the appearance of the CT and MR findings combined with the macroscopic appearance on colonoscopy. They identified DCHR as a rare benign vascular tumor of the large intestine, of unknown prevalence. DCHR misdiagnosis is common; its macroscopic appearance can simulate varices, hemorrhoids, polyps or proctitis. For diagnosis, MRI is the gold standard. Haematochezia due to mucosal wall erosion represents the common presentation. Pull-through transection and colo-anal anastomosis is the treatment of choice for symptomatic DCHR. The patient presented in this work remains well, asymptomatic, with no indication of iron deficiency anemia.