unusual feature of mature cystic teratoma: multiple intra-cystic spherical structures: a case report

Ovarian mature cystic teratomas (omcts) due to their heterogeneous histologic entity, have a wide spectrum of radiologic features. a type of floating spherical globule that has been called “sack of marble” or &coins-in-sack,” but without a fat or calcification component that results in misdiagnosis on computed tomography (ct), is a rare finding. the patient was a 35-year-old healthy woman with abdominal pain and sonographic findings based on omct with the coins-in-sack sign, whereas the ct manifestation was a unilocular huge cyst suggesting an adnexal cystadenoma. she had a final diagnosis of the coins-in-sack variant of omct but with keratin balls, not common fat balls. understanding the unconventional radiologic and histologic manifestations of omcts, is necessary to make an accurate diagnosis.