Introduction
Myxoid liposarcoma (MLS) is a translocation-related sarcoma. It has a
translocation with FUS-DDIT3 or rarely EWSR1-DDIT3 fusion. Some MLS
pathology has round cell areas within the tissue that represent
histologic progression to high-grade tumors. Round cells account for
more than 5% of total cells and have a high malignant and metastatic
potential. Clinically, distant metastases to retroperitoneal, abdominal
and bone sites occur in about one-third of MLS patients, but cardiac
metastases are very rare. This text reports a case of pericardial
metastasis in a patient with MLS originating in the left thigh.