Synchronous urinary bladder metastasis of chromophobe renal cell carcinoma.

Urinary bladder metastasis in patients with renal cell carcinoma is rare and until now <70 cases have been documented in literature. Majority of these reported cases were histologically clear cell variant of renal cell carcinoma. Urinary bladder metastasis of chromophobe variant of renal cell carcinoma is extremely rare and is limited to only isolated case reports. We present here a case of a man aged 24 years who was diagnosed to have a left renal mass and right renal calculi on evaluation for complaints of left-sided abdominal pain and was incidentally detected to have suspicious bladder lesions during cystoscopy. Postoperative histopathology from the renal mass as well as the urinary bladder lesions showed chromophobe variant of renal cell carcinoma. The patient did not develop any recurrence on follow-up.