Granulomatous lesions
Post-TURP granulomatous prostatitis

Author: Ali Amin, M.D.

Revised: 31 October 2017, last major update January 2012

Copyright: (c) 2003-2017,, Inc.
Cite this page: Amin, A. Post-TURP granulomatous prostatitis. website. Accessed October 16th, 2018.
Definition / general
  • Formerly called eosinophilic prostatitis
Clinical features
  • No systemic symptoms
  • Develop months after an invasive procedure as a reaction to the procedure and tissue damage (most commonly following TURP, less commonly after biopsy or cautery)

    Hair granuloma:
Microscopic (histologic) description
  • Central region of fibrinoid necrosis surrounded by pallisading histiocytes
  • Resembles rheumatoid nodules
  • Long tortuous granulomas may dissect tissue
  • Minimal surrounding inflammation (lymphocytes, plasma cells, rare eosinophils)
  • More eosinophils in first month after TURP (Am J Surg Pathol 1984;8:217)
Microscopic (histologic) images

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Post-biopsy granuloma