Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed
Neoplasm containing sebaceous material, hair, dental derivatives and bone. When excised in the newborn all are benign, when excised in older children many more are malignant.
The abdominal plain film shows calcifications in 60% and an intact sacrum with the mass being presacral in location.
Computed tomography shows a unilocular or multilocular cystic lesion containing mixed contents. Part of mass is external and part is intrapelvic.
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