Skeletal muscle metastases at sites of documented XXXX .

@entity1 @entity1410 @entity3 @entity121 @entity130
OBJECTIVE: Hematogenous metastases to skeletal muscles have been reported to be rare. We report eight biopsy-proven cases of skeletal metastases occurring in sites of previously documented skeletal muscle @entity130 . We retrospectively reviewed MR imaging examinations obtained at a large orthopedic surgical oncology service from January 1994 through December 2000 for biopsy-proven metastases to skeletal muscles. Our retrospective review revealed 28 @entity1 with biopsy-proven skeletal muscle metastases. Of these 28 @entity1 , eight had a documented clinical history of previous @entity130 at the site of skeletal @entity3 . Five of these eight @entity1 underwent MR imaging before the development of a @entity3 . MR imaging revealed a @entity1410 in three of the five @entity1 and a partial muscle tear in two of the five @entity1 . The @entity1410 and @entity121 were in the same skeletal muscle location in which the @entity3 subsequently developed. @entity3 was documented by MR imaging and subsequent biopsy. CONCLUSION: Skeletal @entity121 may alter muscle physiology and result in increased susceptibility to the development of @entity3 at such sites.
