Liposarcomas represent the second most common type of soft tissue sarcomas after malignant fibrous histiocytoma. There are four histological subtypes according to the World Health Organization: well-differentiated (atypical lipomatous) liposarcoma, dedifferentiated, myxoid (round-cell) liposarcoma (ML), and pleomorphic liposarcoma 1 . Their primary anatomical sites of origin from liposarcomas are the retroperitoneum in 25-50% and the lower limbs in 25-35%. The most frequent distant sites for metastasis arising from ML include lungs, retroperitoneum, abdominal cavity, and chest wall 1 . ML accounts for 30-50% of all liposarcomas, with a peak incidence between the third and the fifth decade of life, being more frequent in males than females, exhibiting an overall metastatic rate of 30%. Interestingly, it has an expansive growth pattern, with less aggressive infiltrative behavior, thus, causing frequently obstructive clinical syndromes at the main site of metastasis, however, metastatic intracardiac soft tissue sarcomas represent an extremely rare clinical
Liposarcomas represent the second most common type of soft tissue sarcomas after malignant fibrous histiocytoma. There are four histological subtypes according to the World Health Organization: well-differentiated (atypical lipomatous) liposarcoma, dedifferentiated, myxoid (round-cell) liposarcoma (ML), and pleomorphic liposarcoma 1 . Their primary anatomical sites of origin from liposarcomas are the retroperitoneum in 25-50% and the lower limbs in 25-35%. The most frequent distant sites for metastasis arising from ML include lungs, retroperitoneum, abdominal cavity, and chest wall 1 . ML accounts for 30-50% of all liposarcomas, with a peak incidence between the third and the fifth decade of life, being more frequent in males than females, exhibiting an overall metastatic rate of 30%. Interestingly, it has an expansive growth pattern, with less aggressive infiltrative behavior, thus, causing frequently obstructive clinical syndromes at the main site of metastasis, however, metastatic intracardiac soft tissue sarcomas represent an extremely rare clinical
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