PCNA and dedifferentiated liposarcoma: In the Barretina sarcoma database, the multiple changes of pcna expression in pleomorphic liposarcoma, leiomyosarcoma, myxofibrosarcoma, dedifferentiated liposarcoma, and myxoid/round cell liposarcoma were 4.323, 5.521, 4.905, 2.874, and 2.492, respectively.