Prostatic intraepithelial neoplasia: a lesion that may be confused with cancer on prostatic ultrasound.

The Journal of Urology
M K BrawerF Lee

Abstract

Most prostatic adenocarcinomas reveal a hypoechoic peripheral zone lesion on transrectal ultrasonography. Numerous benign processes can have similar transrectal ultrasound findings. We report 8 cases of transrectal ultrasound-guided prostatic biopsies of peripheral zone hypoechoic lesions that demonstrated prostatic intraepithelial neoplasia, a presumed premalignant lesion. Immunohistochemistry using an antibody directed against cytokeratins 5 and 14 was performed to exclude carcinoma. Of the men 2 had invasive carcinoma on repeat biopsy and 1 had carcinoma diagnosed on subsequent transurethral resection. Patients with prostatic intraepithelial neoplasia on biopsy of hypoechoic peripheral zone lesions merit careful monitoring.

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Jan 1, 1991·Urologic Radiology·J B RubensteinC A Furey
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