Abstract
In February 201X, a 40s man was admitted to our hospital with a 1-week history of abdominal pain and vomiting. Physical examination revealed tenderness of the abdomen as well as rebound tenderness. Abdominal X-ray revealed a number of calcifications around the ascending colon and a niveau of the small intestine, however, no free-air was observed. Abdominal contrast-enhanced CT revealed calcification of the right colonic vein, contrast defects, and wall thickening of the ascending colon. Under the diagnosis of necrosis of the ascending colon, emergency laparotomy was performed. At the operation, necrosis of the bowel segment from the ascending colon to the center of the transverse colon was observed, therefore, resection was performed. Histopathology revealed a mucosal ulcer, calcification of the venous wall, and extensive fibrosis of the submucosal layer. The patient was diagnosed as having IMP. He was discharged after 16 days. In this case, the patient had taken the Chinese medicine (Shishihakuhitou®) for 10 years, and our findings suggested a possible etiological association of the condition with the Chinese medicine. Currently, the patient has stopped taking this drug and is under observation.
