Mediastinal Lipoblastoma: Report of a Case

Lipoblastomas are rare benign tum ors arising from fetal-embryo nal fat that almost always occur in children and about two thirds of them o ccur in the superficial or deep layers of soft tissue on extremities. to our knowledge there ar e only 6 case reports of mediastinal lipoblastomas in the english medical literature. we re port a case of mediastinal lipoblastoma in a 2.5–year-old child. a mediastinal mass was foun d on the chest x-ray, ct (computed tomography) scan and mr (magnetic resonance) imaging. we found a fatty density mass with no evidence of septation, strading and soft ti ssue density without enhancement after contrast injection. on mri, the mass was high-signal intensity on t1 and t2. complete surgical resection was performed and the pathological examination proved lipoblastoma.