Ulcerated and vascular-patterm-decreased mucosa in the.sigmoid colon?

Ulcerative Colitis: Ulcerative colitis is an inflammatory bowel disease that can have ulceration and decreased vascular patterns in the sigmoid colon. Common symptoms are weight loss, frequent diarrhea (usually bloody) & abdominal pain. Uc occurs when your immune system cannot control the inflammation. See your doctor immediately if you are having these symptoms.

Ibd maybe: Sounds like inflammatory bowel disease but biopsies and more clinical history is needed to diagnose it for sure.