Ulcerative colitis on ultrasound

Transabdominal ultrasound of chronic active ulcerative colitis of the sigmoid colon showing a symmetric mural inflammatory reaction by color Doppler imaging. Bowel wall thickening of the mucosa (M), echorich and hypervascular submucosa (SM) and echopoor muscularis propria (Musc) is indicated. The lumen is not seen due to mucosal swelling. A small (6 mm) periintestinal lymph node (LN) is indicated as well.