A Case of Orbital Atypical Lipoma

ABSTRACT

Atypical lipoma is benign tumor which is common in neck and thigh, but extremely rare in orbit. Fatty tumors histologically containing atypical multivacuolated lipoblasts have, in the past, all too often received the automatic diagnosis of liposarcoma. With the recent recognition of tumors having such cellular atypia, but benign course, and for which the terms atypical lipoma have been used, it is hoped that needless radical surgical procedure will not be performed. We experienced a case of orbital atypical lipoma of 14-year-old girl. Computed tomography showed a large, homogenous low density, primarilyextraconal mass. The tumor was excised nearly totally from orbit through transcranial approach.