Thyroid gland
Benign neoplasms

Topic Completed: 1 June 2014

Minor changes: 15 March 2019

Copyright: 2014-2017,, Inc.

PubMed Search: lymphangioma thyroid

Sheren Younes, M.D.
Page views in 2019: 203
Page views in 2020 to date: 100
Cite this page: Younes S. Lymphangioma. website. Accessed July 7th, 2020.
Definition / general
  • Very rare, benign congenital malformation of lymphatic development
  • Thyroid gland is most common site in head and neck
Clinical features
  • Thyroid enlargement
  • Dyspnea
  • Normal thyroid function tests
  • Clinical, based on ultrasonography, FNAC or biopsy
Radiology description
  • Ultrasound shows labyrinth of interconnecting cysts
Case reports
  • Surgical excision
Microscopic (histologic) description
  • Lymphatic spaces of variable size, lined by attenuated endothelium, filled with proteinaceous fluid
  • The stroma in between is delicate collagenous
Microscopic (histologic) images

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H&E, skin

Differential diagnosis
  • Cystic thyroid lesions
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