Salivary glands
Other tumors
Schwannoma


Topic Completed: 1 September 2012

Revised: 25 March 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed Search: Schwannoma[TIAB] salivary

Adriana Handra-Luca, M.D.
Page views in 2018: 303
Page views in 2019 to date: 366
Cite this page: Handra-Luca A Schwannoma. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/salivaryglandsschwannoma.html. Accessed October 16th, 2019.
Definition / general
  • Neural tumor that may arise from facial nerve and present as salivary gland tumor
  • Adults or children; often occurs in intranodal parotid gland
  • Rarely diagnosed preoperatively
  • Slow growing, usually asymptomatic, neurological signs when associated with nerve compression
Case reports
Treatment
  • Surgery for multiple schwannoma; may recur if incomplete resection
Gross description
  • Encapsulated tumor
Gross images

Images hosted on other servers:

Tumor of sublingual gland

Microscopic (histologic) description
Microscopic (histologic) images

Images hosted on other servers:

Various images

Tumor of sublingual gland shows (left to right): thin fibrous capsule, spindle cells with palisading pattern, residual gland in center of tumor
(Alcian blue pH 2.5 / PAS), S100+

Cytology description
  • Uniform spindle cells with scant, ill defined cytoplasm and cigar shaped nuclei; also lymphocytes, foamy histiocytes, Verocay body clusters
Immunohistochemistry
Differential diagnosis
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