Atypical small acinar proliferation (ASAP): Is a repeat biopsy necessary ASAP? A multi-institutional review

A. Leone, B. Gershman, K. Rotker, C. Butler, J. Fantasia, A. Miller, A. Afiadata, A. Amin, A. Zhou, Z. Jiang, T. Sebo, A. Mega, S. Schiff, G. Pareek, D. Golijanin, J. Yates, Robert Jeffrey Karnes, J. Renzulli

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

Atypical small acinar proliferation (ASAP) occurs in approximately 5% of prostate biopsies. Approximately 30-40% of patients with ASAP may develop prostate cancer (PCa) within a 5-year period. Current guidelines recommend a repeat biopsy within 3-6 months after the initial diagnosis. Our objective was to examine the association between ASAP and subsequent diagnosis of high-grade PCa and to evaluate the need for immediate repeat biopsy.Methods:A retrospective multi-institutional review identified 264 patients who underwent prostate biopsy from 2000 to 2013 (Brown), 2008 to 2013 (University of Massachusetts) and 1994 to 2005 (Mayo) and were diagnosed with ASAP. Patients underwent transrectal ultrasound-guided biopsies for elevated PSA and/or abnormal digital rectal exam. Clinicopathologic features were assessed, including rates of subsequent PCa detection of any high-grade (Gleason 7-10) PCa. Comparison was made between those with subsequent PCa on repeat biopsy and those with benign repeat pathology.Results:All 264 patients included underwent repeat biopsy with a median follow-up of 5.4 years (interquartile range: 4.6, 6.7). Of these patients, 89 (34%) were subsequently diagnosed with PCa including 21 (8%) with high-grade PCa. Pre-biopsy PSA was higher among patients subsequently diagnosed with (6.7 vs 5.8, P

Original languageEnglish (US)
Pages (from-to)68-71
Number of pages4
JournalProstate Cancer and Prostatic Diseases
Volume19
Issue number1
DOIs
StatePublished - Mar 1 2016

ASJC Scopus subject areas

  • Oncology
  • Urology
  • Cancer Research

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    Leone, A., Gershman, B., Rotker, K., Butler, C., Fantasia, J., Miller, A., Afiadata, A., Amin, A., Zhou, A., Jiang, Z., Sebo, T., Mega, A., Schiff, S., Pareek, G., Golijanin, D., Yates, J., Karnes, R. J., & Renzulli, J. (2016). Atypical small acinar proliferation (ASAP): Is a repeat biopsy necessary ASAP? A multi-institutional review. Prostate Cancer and Prostatic Diseases, 19(1), 68-71. https://doi.org/10.1038/pcan.2015.52