Imaging features of heterotopic mesenteric ossification: A case report and literature review

Heterotopic mesenteric ossification is extremely rare. Here, we report a case of heterotopic mesenteric ossification in a 60-year-old man who underwent a Hartmann procedure with ileostomy for treatment of diverticulitis spanning the descending and sigmoid colon about 2 months ago. Imaging studies of the abdomen, including roentgenography, ultrasound, and computed tomography (CT) revealed diffuse curvilinear high densities with mature trabecular texture dispersing within the mesentery. The patient underwent a laparotomy with partial resection of the lesions. Heterotopic mesenteric ossification was diagnosed by pathologic examination. The characteristic imaging features of this rare entity were discussed and literature was reviewed.