Intramuscular myxoma: MU features

Mark J. Kransdorf, Richard P. Moser, James S. Jelinek, Sharon W. Weiss, Peter C. Buetow, B. Hudson Berrey

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


Intramuscular myxoma is a benign mesenchymal lesion consisting of bland spindled cells embedded in an avascular myxoid stroma. On CT, intramuscular myxoma presents as a well-demarcated, homogeneous, low density mass situated within skeletal muscle. The attenuation of the lesion is slightly greater than water but less than that of the surrounding normal muscle, with typical values between + 10 and +60 HU. There is scant magnetic resonance (MR) literature on the appearance of intramuscular myxoma; the few MR spin echo images that have been published characterize it as a homogeneous mass with signal intensity less than or equal to skeletal muscle on Tl-weighted and brighter than fat on T2-weighted pulse sequences. We present two cases of intramuscular myxoma with imaging characteristics that differ from those previously reported.

Original languageEnglish (US)
Pages (from-to)836-839
Number of pages4
JournalJournal of computer assisted tomography
Issue number5
StatePublished - 1989


  • Magnetic resonance imaging
  • Muscles
  • Myxoma
  • Neoplasms

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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