Case report: a rare clinical presentation of a difficult diagnosis of dedifferentiated liposarcoma showing leiomyosarcoma phenotype in the ileocecal region - Kawasaki, Tomonori; Tashima, Tomoaki; Onohara, Kojiro; Hirano, Yasumitsu; Yamato, Misuzu; Shirotake, Suguru; Torigoe, Tomoaki; Yazawa, Yasuo; Hirasaki, Masataka; Wako, Masanori; Fujimaki, Taro; Ichikawa, Jiro (Frontiers in Oncology, 2024)