Mediastinum
Thymus
Ectopic thymus




Topic Completed: 1 December 2012

Revised: 13 February 2019

Copyright: 2003-2018, PathologyOutlines.com, Inc.

PubMed Search: Ectopic thymus[TI]

Page views in 2018: 218
Page views in 2019 to date: 138
Cite this page: Gulwani H. Ectopic thymus. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/mediastinumectopicthymus.html. Accessed March 21st, 2019.
Definition / general
  • Remnants, implants or accessory nodules that may appear from angle of mandible to thyroid gland, most commonly at level of thyroid gland
  • Rarely becomes hyperplastic or neoplastic
Epidemiology
  • Usually an incidental finding during thyroid surgery in preteens, very rare in adults due to thymic involution
Radiology images

Images hosted on other servers:

Homogeneous mass in
submandibular space,
extending toward
parapharyngeal space

Case reports
Microscopic (histologic) description
  • Normal appearing thymic tissue
Microscopic (histologic) images

Images hosted on other servers:

Central cervical epithelial rest

CK5 / 6, p63, CD10

Differential diagnosis
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