title: Presacral Myelolipoma: Diagnosis on Imaging With Pathologic and Clinical Correlation.
abstract: OBJECTIVE
  Myelolipoma is a benign tumor composed of fatty and hematopoietic elements. Presacral myelolipoma is rare, with fewer than 40 cases reported in the English literature. It is important to make an accurate diagnosis because there are malignant diseases included in the differential diagnosis of a presacral fatty mass, particularly liposarcoma.
  
  
  CONCLUSIONS
  The combination of a well-encapsulated fat-containing presacral mass, lack of coinciding hematologic disease, and uptake on sulfur colloid scintigraphy support the diagnosis of a presacral myelolipoma.
authors.affiliation: 1 Joint Department of Medical Imaging, Women's College Hospital, University of Toronto, 76 Grenville St, Rm 2238, Toronto, ON, M5B 1S2, Canada.
authors.forename: Jonghun John
authors.initials: JJ
authors.lastname: Lee
authors.affiliation: 2 Department of Laboratory Medicine and Pathobiology, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada.
authors.forename: Brendan C
authors.initials: BC
authors.lastname: Dickson
authors.affiliation: 1 Joint Department of Medical Imaging, Women's College Hospital, University of Toronto, 76 Grenville St, Rm 2238, Toronto, ON, M5B 1S2, Canada.
authors.forename: Boraiah
authors.initials: B
authors.lastname: Sreeharsha
authors.affiliation: 3 Department of Surgery, Division of General Surgery, Mount Sinai Hospital, University of Toronto, Toronto, ON, Canada.
authors.forename: Rebecca A
authors.initials: RA
authors.lastname: Gladdy
authors.affiliation: 1 Joint Department of Medical Imaging, Women's College Hospital, University of Toronto, 76 Grenville St, Rm 2238, Toronto, ON, M5B 1S2, Canada.
authors.forename: Seng
authors.initials: S
authors.lastname: Thipphavong
mesh_terms: D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D006801:Humans; D018209:Myelolipoma / Q000000981:diagnostic imaging* / Q000473:pathology; D010386:Pelvic Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology
keywords: extraadrenal myelolipoma; extramedullary hematopoiesis; liposarcoma; myelolipoma; presacral; teratoma