Publications by authors named "Ryotaro Nagao"
Background: Juvenile polyps (JPs) are non-neoplastic polyps. In adults, JPs present with hematochezia in only approximately half the patients and are often found incidentally during endoscopic screening. JPs have no mucosal fascia at the tip, and spontaneous shedding and massive gastrointestinal hemorrhage may occur.
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- Ischemic colitis linked to inferior mesenteric arteriovenous malformation (AVM) is a rare condition with limited published cases, particularly lacking a discussion on its natural history.
- A 50-year-old man experienced ongoing abdominal pain and bloody diarrhea, leading to a diagnosis of ischemic colitis caused by inferior mesenteric AVM after imaging studies.
- Following surgery, the patient has not experienced any symptoms for 3 years, marking the first documented account of how inferior mesenteric AVM progresses over time.