Breast nonmalignant
Benign tumors
Leiomyoma


Topic Completed: 1 April 2010

Revised: 31 May 2019

Copyright: 2002-2019, PathologyOutlines.com, Inc.

PubMed Search: Leiomyoma [title] breast

Hind Warzecha, M.D.
Page views in 2018: 728
Page views in 2019 to date: 617
Cite this page: Nassar H Leiomyoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/breastleiomyoma.html. Accessed August 21st, 2019.
Definition / general
  • Benign smooth muscle tumor similar to counterparts elsewhere
Epidemiology
  • Rare in breast
Sites
  • Usually involves nipple
Etiology
Clinical features
Case reports
Treatment
  • Complete excision to prevent recurrence
Clinical images

Contributed by Dr. Mark R. Wick

Breast skin

Gross description
  • Often ill defined
Microscopic (histologic) description
  • Interlacing bundles of spindle cells with eosinophilic cytoplasm and blunt ended, cigar shaped nuclei
  • May have epithelioid or granular features
  • No atypia, no hypercellularity, no / rare mitotic figures ( < 3 per 10 HPF), no necrosis
Microscopic (histologic) images

Circumscribed tumor of spindled cells without atypia

Contributed by Dr. Mark R. Wick

Breast skin



Images hosted on other servers:

Spindled cells with rounded ends

Negative stains
Differential diagnosis
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