Mixed‐type liposarcoma of the oral cavity: a case with unusual features and a long survival

Abstract
A case of mixed‐type liposarcoma, which showed unusual dedifferentiation in the recurrence, is reported. The rapidly growing mass in the palate of a 60‐year‐old Japanese woman first revealed a combination of myxoid liposarcoma with features resembling storiform malignant fibrous histiocytoma. The recurrent neoplasm, showing an abrupt transition between myxoid and non‐lipogenic parts, partially reverted to sclerosing well‐differentiated liposarcoma. The patient died 10.1 years after the first operation.

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