Double Primary Presentation of Liposarcoma and Ewing's Sarcoma: A Case Report
نویسنده
چکیده
ary primary malignancy, particularly another primary soft tissue sarcoma. The incidence of a secondary primary STS occurring in a previously diagnosed adult STS patient is 12.5-fold risk of a normal health individual. Most reported synchronous or metachronous STS affect the head and neck or abdominal region, whereas those affecting the extremities are much rarer. The probability of primary STS with metachronous bone tumor occurring in same patient at different location is a rare occurrence indeed. In addition, the metachronous presentation of liposarcoma and Ewing’s sarcoma/primitive neuroectodermal tumor (ES/PNET) has not reported so far. Therefore, we report a patient who presented with different types of sarcoma, a liposarcoma of left proximal thigh, and an ES/PNET of contralateral proximal tibia.
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