Mixed epithelial and stromal tumor of the kidney (MEST) simulating an upper tract TCC - Abstract

We present a rare and interesting case of a mixed epithelial and stromal tumour (MEST) of the kidney.

The case is unique as it involves a male patient with no history of hormonal therapy presenting with a filling defect in the renal collecting system and positive urine cytology. The patient was diagnosed with transitional cell carcinoma of the renal pelvis and subjected to nephroureterectomy, which revealed a solid tumour arising from the lower calyces and extending into the renal pelvis and upper ureter. Pathology revealed a MEST. The patient was disease-free at the 6-month follow-up.

Written by:
Sountoulides P, Koptsis M, Metaxa L, Theodosiou A, Kikidakis D, Filintatzi C, Paschalidis K. Are you the author?
Department of Urology, General Hospital of Veria, Greece.

Reference: Can Urol Assoc J. 2012 Feb;6(1):E23-6.
doi: 10.5489/cuaj.11042

PubMed Abstract
PMID: 22396379

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