Ectopic thymus

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 14 June 2018, last major update December 2012

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Ectopic thymus[TI]

Cite this page: Gulwani, H. Ectopic thymus. website. Accessed July 22nd, 2018.
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
  • 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