Heterotopic mesenteric ossification is a very rare reactive lesion in the small bowel mesentery, and it is related with trauma or surgical operation. It is pathologically characterized by well formed bone trabeculae and prominent osteoblastic rimming and is clinically related to rapid and recurrent bowel obstruction symptoms. This unusual reactive process shares many clinical and pathologic features with myositis ossificans. We report here on a rare case of heterotopic mesenteric ossification in 28-year-old man who underwent a delayed small bowel resection 15 days after trauma.
Heterotopic bone formation in the eyeball is a rare finding.
Some etiologic factors, such as trauma, chronic inflammation, and long-standing retinal detachment have been associated with the onset of intraocular ossification. We report here on a case of a 21-year-old woman with a history of blunt trauma fifteen years ago, who complained of right eye blindness. When the right eyeball eviceration was done, a hard, grayish mass was found. On histopathologic examination, the mass showed lamellar bone with fatty marrow and hyalinized tissue with dystrophic calcification. We diagnosed her case as intraocular ossification.