Abstract
Ewing's sarcoma is generally observed in the skeletal and connective tissues of paediatric individuals. The occurrence of extraosseous neuroectodermal tumours is uncommon. Renal Ewing's sarcoma usually presents with flank pain, haematuria, or as an abdominal mass. Immunohistochemistry and fluorescence in situ hybridization (FISH) techniques are essential in its diagnosis and differentiation from other tumours. We present asymptomatic renal Ewing's sarcoma in a 19-year-old female patient who was diagnosed incidentally, and the CT scan confirmed a 2.8 cm left mid-pole renal mass suggestive of malignancy. She was managed with a robotic partial nephrectomy. Tumour immunohistochemistry and the FISH technique confirmed the diagnosis of Ewing's sarcoma. The patient made an uneventful recovery and was referred for chemotherapy. This case report illustrates that despite the aggressiveness of the tumour, it can be detected earlier despite an asymptomatic presentation and be successfully treated with nephron-sparing surgery and chemotherapy.
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