title: Fine needle aspiration diagnosis of a mesenteric myelolipoma: a case report.
abstract: BACKGROUND
  Extraadrenal myelolipomas are very rare tumors, with a characteristic, though nonspecific, radiologic appearance. Tissue sampling is necessary for diagnosis, and although most of these tumors are asymptomatic, surgical excision is often indicated.
  
  
  METHODS
  A 59-year-old male was found to have a large mass within the mesentery of the abdomen, incidentally discovered during an ultrasound examination for renal lithiasis. Computed tomography-guided fine needle aspiration biopsy yielded mature adipose tissue admixed with hematopoietic elements.
  
  
  CONCLUSIONS
  FNA proved to be a rapid and effective modality for the diagnosis of this distinctly uncommon tumor.
authors.affiliation: Department of Pathology, Georgetown University Medical Center, Washington, DC, USA.
authors.forename: J A
authors.initials: JA
authors.lastname: Bryan
authors.forename: C H
authors.initials: CH
authors.lastname: Sykes
authors.forename: D F
authors.initials: DF
authors.lastname: Garvin
mesh_terms: D001707:Biopsy, Needle; D006801:Humans; D008297:Male; D008643:Mesentery / Q000000981:diagnostic imaging / Q000473:pathology*; D008875:Middle Aged; D018209:Myelolipoma / Q000175:diagnosis* / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology; D014057:Tomography, X-Ray Computed