GPT and sarcoma: However, studies indicate that tumor growth rates may vary at different stages.[4,5] Among the subtypes of liposarcoma, ALT/WDL is the most common, accounting for approximately 40% of all liposarcomas.[6] WDL demonstrates locally aggressive behavior and may undergo dedifferentiation into a higher-grade sarcoma (i.e., dedifferentiated liposarcoma), which carries a significant metastatic potential.