Mucinous adenocarcinoma of the prostate found incidentally in adenomectomy specimen complicated with vesicocutaneous fistulae

Primary mucinous tumors of the prostate gland are rare, including mucinous adenocarcinoma, prostatic adenocarcinoma with mucinous features, and mucinous adenocarcinoma of the prostatic urethra. In this report, we present a case of a locally advanced mucinous variant of prostatic ductal adenocarcinoma, found incidentally during pathology examination of an adenomectomy specimen, after bladder outlet obstruction surgery. Recent large studies indicated that mucinous adenocarcinoma of the prostate, treated by radical prostatectomy, is not more aggressive than ordinary nonmucinous prostatic adenocarcinoma. In our case, the rapid deterioration of our patient, the return of tumor in its initial size soon after surgery, in addition to its distal metastatic spread should be attributed not only to the mucinous variant of prostatic adenocarcinoma but also to the advanced stage during initial diagnosis and the noncompliance of the patient with the suggested treatment after surgery, omitting radiotherapy, and hormonal maneuvers.