Relationship between perineural tumor invasion on needle biopsy and radical prostatectomy capsular penetration in clinical stage B adenocarcinoma of the prostate

S. I. Bastacky, P. C. Walsh, J. I. Epstein

Research output: Contribution to journalArticlepeer-review

Abstract

We studied 302 needle biopsies for perineural invasion for sensitivity and specificity in predicting capsular penetration in subsequent radical prostatectomies. Perineural invasion was seen in 20% of needle biopsies, with a sensitivity of 27% and a specificity of 96% in predicting capsular penetration. By including tumor with a Gleason sum of 7 or greater or perineural invasion on needle biopsy as being predictive, sensitivity increased to 36% with a specificity of 94%. By restricting perineural invasion to cases with more than one nerve involved or a nerve involvement of a diameter 0.1 mm or greater, specificity increased to 97% and 99%, respectively, with sensitivity falling to 15% and 9%, respectively. Measuring perineural invasion on needle biopsy helps to identify capsular penetration and may help in planning nerve-sparing radical prostatectomy in the decision of whether to sacrifice part or all of the neurovascular bundle on the side of the biopsy.

Original languageEnglish (US)
Pages (from-to)336-341
Number of pages6
JournalAmerican Journal of Surgical Pathology
Volume17
Issue number4
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

Keywords

  • Capsular penetration
  • Nerve-sparing radical prostatectomy
  • Neurovascular bundle
  • Perineural invasion
  • Prostatic adenocarcinoma

ASJC Scopus subject areas

  • Anatomy
  • Surgery
  • Pathology and Forensic Medicine

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