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Ewing's sarcoma of kidney in a 60-year-old patient with local recurrence: A rare occurrence

1 Department of Medical Oncology, Gazi University Faculty of Medicine, Ankara, Turkey
2 Department of Pathology, Gazi University Faculty of Medicine, Ankara, Turkey

Correspondence Address:
Irem Bilgetekin,
Department of Medical Oncology, Gazi University Faculty of Medicine, Besevler, Ankara
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Source of Support: None, Conflict of Interest: None

Ewing's family of tumors is aggressive tumors and frequently arises from bone and soft tissue. They might also arise from nonosseous structures such as gastrointestinal tract, adrenal glands, or kidney. Primary renal Ewing's sarcoma (ES)/primitive neuroectodermal tumor is an extremely rare entity which has aggressive clinical course. These high-grade malignant tumors predominantly affect adolescents and young adults. Patients mostly present with nonspecific symptoms such as pain, hematuria, mass, and sensitivity. It is confused with renal cell cancer in imaging techniques. The definitive diagnosis is based on the histopathological examination. Surgical or radiotherapy treatment is used for local control and multiagent chemotherapy used for systemic treatment. Despite all treatment options, prognosis is poor. We aimed to describe the diagnosis and follow-up and treatment of renal ES case that was considered as renal cell carcinoma in imaging but diagnosed as ES via histopathology.

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