Soft tissue
Smooth muscle
Smooth muscle tumors - general

Author: Vijay Shankar, M.D. (see Authors page)

Revised: 29 September 2016, last major update November 2012

Copyright: (c) 2002-2016, PathologyOutlines.com, Inc.

PubMed Search: Smooth muscle tumors [title]

Cite this page: Smooth muscle tumors - general. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/softtissuesmoothmuscletumorsgeneral.html. Accessed December 10th, 2016.
Micro Description
  • Tumor cells resemble smooth muscle with easily visible, often fibrillar and eosinophilic cytoplasm, usually in long bundles or fascicles
  • Nucleus is long, oval and round at both ends, often with cytoplasmic vacuole at one end, nucleoli are indistinct
  • Minimal collagen present between smooth muscle cells
  • Smooth muscle cells may resemble myofibroblasts with less cytoplasm, thinner nuclei, denser chromatin
  • Note: smooth muscle tumors of skin, vulva/vagina, scrotum, nipple and other locations are described in these chapters
Micro Images

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Smooth muscle



Longitudinal

Transverse

Positive Stains