Sonmez F.C.Esen H.H.Tavli L.Kilinç M.2020-03-262020-03-2620141304-3889https://dx.doi.org/10.15197/sabad.1.11.36https://hdl.handle.net/20.500.12395/31358Adenocarcinoma arising from renal pelvis is uncommon. A mucinous cystadenoma of the renal pelvis with malignant transformation is a rare entity. We report a case of well-differentiated mucinous cystadenocarcinoma of the renal pelvis with malignant transformation of cystadenoma with mucus-filled kidney (muconephrosis) due to mucin produced by the tumor.en10.15197/sabad.1.11.36info:eu-repo/semantics/openAccessCystadenomaMalignant transformationMucinous adenocarcinomaRenal pelvisArticle11SUPPL. 16365N/A