Primary heterotopic mesenteric ossification

Heterotopic ossification (HO) is the presence of bone in nonossifying tissue. Mesenteric HO usually results from previous abdominal trauma or surgery. This is a case report of 87-year-old lady who presented with subacute intestinal obstruction, she had neither previous history of abdominal trauma nor surgery. On exploration, there was spiral ossified tissue trapping small bowel that was removed and the condition resolved completely. As long as to our knowledge, this is the first reported case of intra-abdominal Heterotopic ossification without previous cause in English articles. HO should keep in mind in any ossified peritoneal lesion even without previous surgery or trauma.