Oral cavity
Other malignancies
Sarcoma - other

Author: Nat Pernick, M.D. (see Authors page)

Revised: 10 May 2018, last major update November 2013

Copyright: (c) 2002-2018, PathologyOutlines.com, Inc.

PubMed Search: Oral cavity[TI] sarcoma[TIAB]

Cite this page: Pernick, N. Sarcoma - other. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/oralcavitysarcoma.html. Accessed October 17th, 2018.
Low grade myofibroblastic sarcoma
Definition / general:
Microscopic (histologic) description:
  • Cellular lesions with diffuse infiltration, composed of spindled cells in fascicles with poorly defined, pale eosinophilic cytoplasm, fusiform nuclei, small nucleoli, in collagenous matrix with prominent hyalinization
  • Mild nuclear atypia, occasional mitotic figures (1 - 6 per 10 HPF)

Positive stains:
Electron microscopy description:
  • Myofibroblasts

Differential diagnosis:
Malignant peripheral nerve sheath tumor
Case reports:
Rhabdomyosarcoma
Case reports:
Microscopic (histologic) images:

Images hosted on PathOut server:

Case of the Week #276:

Embryonal rhabdomyosarcoma


Actin

Desmin

Myogenin

MyoD1