Abstract
Sarcomas are malignant soft tissue tumors that constitute <1% of malignancies and liposarcoma (LS) is the most common sarcoma with about 20%. Majority of LSs are well-differentiated (40%). About 5–10% of them will further progress and develop abrupt shift into dedifferentiated neoplastic tissue and contain nonlipogenic component that are labeled as dedifferentiated LSs. LSs commonly affect age group of 50–70 years and commonly occur over extremities and in retroperitoneum. Prognosis of LS depends on various parameters such as histological grade, type, size, location, and presence, or absence of metastasis. We hereby, report a case in 30 years adult male patient with clinical and radiological diagnoses as “intramuscular lipoma” over the thigh. Cytological examination revealed malignant nature of the soft tissue lesion. Histopathology revealed dedifferentiated LS containing highly bizarre tumor giant cells. This case report reemphasizes the cytology findings of this rare entity and reviews the literature on a dedifferentiated variant of LS.
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