Spindle cell lesions of the adult prostate

Donna E. Hansel, Mehsati Herawi, Elizabeth Montgomery, Jonathan I. Epstein

Research output: Contribution to journalReview articlepeer-review

Abstract

Prostatic spindle cell lesions are diagnostically challenging and encompass a broad array of benign and malignant processes. A subset of these lesions arises only within the prostate and generally represents entities that originate from the prostate epithelium or stroma, such as sclerosing adenosis, sarcomatoid carcinoma, stromal tumors of uncertain malignant potential (STUMP), and stromal sarcoma. Another subset of spindle cell tumors that involve the prostate are also found at other sites and include solitary fibrous tumor, leiomyosarcoma, and neural lesions among others. Finally, tumors may secondarily involve the prostate yet present as primary prostatic processes, as is evident with several cases of gastrointestinal stromal tumors (GIST). The utility of ancillary studies, including immunohistochemistry, is often limited and the main criteria for diagnosis are the morphologic findings by routine H&E stain. This review addresses the various entities that may present as spindle cell tumors within the adult prostate and discusses the functional aspects of the differential diagnosis of these lesions.

Original languageEnglish (US)
Pages (from-to)148-158
Number of pages11
JournalModern Pathology
Volume20
Issue number1
DOIs
StatePublished - Jan 2007

Keywords

  • Carcinoma
  • Mesenchyme
  • Prostate
  • Sarcoma
  • Stroma

ASJC Scopus subject areas

  • Pathology and Forensic Medicine

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