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Fungus formation in the urinary tract mainly occurs in immunosuppressed patients, and is a rare and dangerous complication of candiduria that is commonly misdiagnosed. We report a case of intravesical mycetoma associated with hydronephrosis, initially diagnosed as enterovesical fistula. Cystoscopy revealed spongy material within the urinary bladder, and histopathological examination showed Mycetoma of Candida species. The urine culture showed Candida tropicalis. Endoscopic removal and antifungal therapy with fluconazole was initiated, and no complications occurred during follow-up.

Percutaneous radiofrequency ablation is a safe and effective minimally invasive treatment option in selected patients with T1a tumors of the kidney with a low complication rate. We describe two cases that developed the rare but severe complication of thermal injury-induced strictures of the upper urinary tract and its consecutive management.