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Ossifying intramuscular metastasis from colon cancer: report of a case
H Yoshikawa1, M Kameyama, T Ueda
1Department of Orthopaedic Surgery, Osaka Medical Center for Cancer and Cardiovascular Diseases, Japan.
Purpose:
This report presents a patient who developed severe buttock pain because of an ossified intramuscular metastasis from a sigmoid colon cancer.
Methods:
This is a case report and review of the literature for intramuscular metastasis from colon cancer.
Results:
Computed tomography and magnetic resonance imaging showed a soft-tissue mass with heavy calcification. Histologically, mature compact bone was observed with adenocarcinoma cells dispersed among the bony trabeculae.
Conclusion:
When an intramuscular mass is seen, even if it contains extensive calcification, metastasis from colon cancer should be included in differential diagnosis.