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Clin Genitourin Cancer. 2016 Oct;14(5):361-365. doi: 10.1016/j.clgc.2016.02.003. Epub 2016 Feb 23.

Diagnostic Difficulties With Atrophy, Atypical Adenomatous Hyperplasia, and Atypical Small Acinar Proliferation: A Systematic Review of Current Literature.

Author information

1
Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland. Electronic address: kowalewskiresearch@gmail.com.
2
Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland.
3
Department of Clinical Pathomorphology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, Bydgoszcz, Poland; Department of Oncologic Pathology and Prophylactics, Poznan University of Medical Sciences and Department of Oncologic Pathology, Greater Poland Cancer Center, Poznan, Poland.

Abstract

Prostate cancer is the second leading cause of cancer death in men, behind only lung cancer. In some cases, the proper diagnosis of prostatic neoplasia can be challenging, and the differential diagnosis includes atypical nonmalignant lesions such as atrophy, atypical adenomatous hyperplasia (AAH), and atypical small acinar proliferation (ASAP). Atrophy and AAH have a benign clinical outcome, and if detected on needle biopsy or transurethral resection of the prostate, clinical follow-up seems appropriate. In contrast, ASAP cannot be determined to be benign or malignant. In clinical practice, the diagnosis of ASAP is an indication for repeat biopsy because the chance of finding prostate adenocarcinoma is even greater than that with an earlier diagnosis of high-grade prostatic intraepithelial neoplasia. Malignant lesions require more restrictive treatment; therefore, differentiation among atrophy, AAH, ASAP, and adenocarcinoma is essential. We performed a systematic review of the current data allow to the creation of a diagnostic algorithm for atrophy, AAH, ASAP, and adenocarcinoma. We propose an algorithm that covers the practical issues related to interpretation of the biopsy findings and how to proceed further.

KEYWORDS:

AAH; ASAP; Cancer; Mimickers; Prostate

PMID:
26992486
DOI:
10.1016/j.clgc.2016.02.003
[Indexed for MEDLINE]

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