5 Facts you should know about

Dedifferentiated liposarcoma

DDLs occur most frequently in middle-aged and older adults with a peak incidence in the 60s-80s

DDL tumors most commonly occur in the retroperitoneal space

At presentation, DDL tumors typically are painless, large, may have been slowly and progressively enlarging for years

Complete surgical resection is usually the recommended first-line treatment for localized DDL tumors

Retroperitoneal DDL is the most common and serious form of DDL; it has a recurrence rate of 66% and a five-year overall survival rate of 54%

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