Larynx and hypopharynx
Benign tumors
Granular cell tumor

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

Revised: 20 March 2018, last major update November 2013

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

PubMed Search: Granular cell tumor [title] larynx

Cite this page: Pernick, N. Granular cell tumor. website. Accessed March 23rd, 2018.
Definition / general
  • Also called myoblastoma
  • May occur in children
Gross description
  • Small, yellow, covered by epithelium
Microscopic (histologic) description
  • Nests of cells with granular and eosinophilic cytoplasm, bland small round / oval nuclei
  • May have overlying pseudoepitheliomatous hyperplasia
Positive stains
Differential diagnosis