Stomach
Stromal / other tumors
Schwannoma

Author: Elliot Weisenberg, M.D. (see Authors page)

Revised: 19 December 2016, last major update July 2012

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

PubMed Search: gastric schwannoma
Cite this page: Schwannoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/stomachschwannoma.html. Accessed October 18th, 2017.
Definition / general
  • Well circumscribed, benign nerve sheath tumor (also called neurilemmoma), much less common (~ 1 / 50) in stomach than GIST
Case reports
Microscopic (histologic) description
  • Well circumscribed but not encapsulated, with interlacing bundles of spindle cells and collagen
  • Often nuclear pallisading, Verocay bodies, hyalinized vessels
  • May have nuclear atypia, inflammatory cells, peripheral cuff of lymphoid aggregates
  • No mitotic figures, no skenoid fibers, no epithelioid features
Microscopic (histologic) images

Images hosted on PathOut server:


Case of the Week #347:

46 year old woman



Images hosted on other servers:

Cuff of inflammation is common

Positive stains
Negative stains