Journal of Medical Cases, ISSN 1923-4155 print, 1923-4163 online, Open Access
Article copyright, the authors; Journal compilation copyright, J Med Cases and Elmer Press Inc
Journal website

Case Report

Volume 1, Number 2, October 2010, pages 42-46

Intramuscular Myxoma of the Paraspinal Musculature


Figure 1.
Figure 1. a and b: Axial and sagittal T2 weighted images showing a large, markedly T2 hyperintense multiloculated mass lesion involving the paraspinal muscles bilaterally (1a) and extending from L2 to S1 vertebral levels (1b); c and d: Axial T1 weighted images showing increased signal in the adjacent paraspinal muscles (arrow heads), in keeping with fatty atrophy. There is destruction of the right lamina with extension into the central spinal canal (arrow in d); e: Note is made of involvement of the right facet joint with cystic change as seen by the increased signal on these T2 weighted images (arrow); f and g: Post contrast axial T1 weighted images showing peripheral rim and septal enhancement. In addition there is patchy heterogeneous enhancement of the intraspinal component.
Figure 2.
Figure 2. Low power photomicrograph of intramuscular myxoma in an 80-year-old woman showing hypocellular myxoma with small stellate cells. Note the lesion is pushing into local adipose tissue (seen left) (Original magnification X 50).