Endometriosis of the vastus lateralis muscle

Pat Auveek Basu*, Anil K. Kesani, Gregory S. Stacy, Terrance D. Peabody

*Corresponding author for this work

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

We report an unusual case of a woman who sought medical attention for a painful mass within her anterolateral left thigh. The patient's symptoms waxed and waned with her menses. Magnetic resonance imaging revealed a 3 cm mass isointense to muscle and surrounded by a rim of decreased signal intensity on T1-weighted images. T2-weighted images with fat saturation revealed a low signal intensity mass with a surrounding rind of high signal intensity edema. Based on its magnetic resonance imaging characteristics, the lesion was initially thought to represent the sequela of prior trauma or perhaps a small fibrous tumor. An excisional biopsy of the mass, however, revealed endometrial tissue, and a pathologic diagnosis of intramuscular endometriosis was rendered.

Original languageEnglish (US)
Pages (from-to)595-598
Number of pages4
JournalSkeletal Radiology
Volume35
Issue number8
DOIs
StatePublished - Aug 1 2006

Keywords

  • Endometrioma
  • Endometriosis
  • Extremities
  • Magnetic resonance (MR)
  • Muscles
  • Vastus lateralis muscle

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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