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Myelolipomas typically appear as lobulated, well-circumscribed lesions with varying ultrasound, CT, and MR imaging characteristics according to the differing prevalence of fat and erythroid/myeloid elements. Myelolipomas can rarely be extra-adrenal, with the presacral location being the most common.






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Presacral myelolipoma: a case report and review of imaging findings

Free full text article: Presacral myelolipoma: a case report and review of imaging findings

Abstract
Extra-adrenal myelolipoma is a relatively rare entity, with fewer than 50 cases reported in literature. We present a case of a 79 year-old female who presented for evaluation of hip fracture following trauma, where a lobulated presacral mass with mixed fat/soft tissue attenuation was incidentally seen on initial bone algorithm pelvic CT. Subsequent MRI showed signal characteristics of a lesion with mixed fat and soft tissue composition. The lesion demonstrated stability on follow-up imaging. An elective surgical resection was performed which yielded a grossly fatty mass. The diagnosis of presacral myelolipoma was confirmed on microscopic examination. Following description of our case, we conduct a literature review of the imaging characteristics, diagnosis, and treatment of presacral myelolipoma.






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