双语教学

Explain of Gastrointestinal Pathology

90.Crohn's disease, small intestine, medium power microscopic

One complication of Crohn's disease is fistula formation. Seen here is a fissure extending through mucosa at the left into the submucosa toward the muscular wall, which eventually will form a fistula. Fistulae can form between loops of bowel, bladder, and skin. With colonic involvement, perirectal fistulae are common.

（本图片资料来源自美国犹他大学）