Benign lesions / conditions
Postoperative spindle cell nodules - primary carcinoma

Authors: Monika Roychowdhury, M.D. (see Authors page)

Revised: 28 July 2016, last major update July 2012

Copyright: (c) 2003-2016,, Inc.

PubMed search: prostatic postoperative spindle cell nodules
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Cite this page: Postoperative spindle cell nodules. website. Accessed January 22nd, 2019.
Definition / general
Gross description
  • Friable red nodules, resembling granulation tissue or sarcoma
Microscopic (histologic) description
  • Cellular with high mitotic activity
  • Intersecting fascicles of spindle cells with extravasated red blood cells resembling Kaposi‚Äôs sarcoma
  • Minimal nuclear pleomorphism, no atypical mitoses
  • Relatively small size
Microscopic (histologic) images

Images hosted on PathOut server:

Bladder tumors (similar histology)

Positive stains
  • Keratin (strong), actin (variable)
Negative stains
  • EMA