Thyroid gland
Benign neoplasms

Author: Sheren Younes, M.D. (see Authors page)

Revised: 26 January 2017, last major update June 2014

Copyright: (c) 2014-2017,, Inc.

PubMed Search: lymphangioma thyroid
Cite this page: Lymphangioma. website. Accessed July 17th, 2018.
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