Extra-adrenal myelolipoma

D. J. Grignon, M. J. Shkrum, M. S. Smout

Research output: Contribution to journalArticle

28 Scopus citations


Extra-adrenal myelolipomas are rarely reported lesions, with only 18 cases found in the world literature. We report a series of three cases, all occurring in women in an age range of 68 to 83 years (mean, 77 years). One patient presented with a pelvic mass while the other two cases were incidental findings at autopsy. All lesions were presacral in location, encapsulated, and not attached to adjacent structures. Sizes ranged from 6 to 12 cm in greatest dimension and from 72 to 330 g. Color was a variegated yellow to red-brown. Microscopically, all were composed of mature fat and focal collections of normal hematopoietic elements. The nature of these lesions is not known but most authors favor a choristomatous origin. They must be distinguished from extramedullary hematopoietic tumors seen in patients with severe anemias, myeloproliferative disorders, and skeletal disease.

Original languageEnglish (US)
Pages (from-to)52-54
Number of pages3
JournalArchives of Pathology and Laboratory Medicine
Issue number1
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Medical Laboratory Technology

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    Grignon, D. J., Shkrum, M. J., & Smout, M. S. (1989). Extra-adrenal myelolipoma. Archives of Pathology and Laboratory Medicine, 113(1), 52-54.