Lymph nodes - not lymphoma
Inclusions, pigment, ectopic cells or tissue
Thyroid follicles

Topic Completed: 1 June 2013

Revised: 1 February 2019, last major update June 2013

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

PubMed Search: Thyroid follicles lymph nodes

Page views in 2018: 45
Page views in 2019 to date: 81
Cite this page: DePond W. Thyroid follicles. website. Accessed December 10th, 2019.
Definition / general
  • 1 - 3% of cervical nodes
Microscopic (histologic) description
  • Capsular or subcapsular involvement with 20 - 30 normal appearing colloid filled thyroid follicles
Differential diagnosis
  • Metastatic papillary carcinoma: assume metastatic unless see small aggregate of follicles that are round / oval, loosely arranged with no papillae, normal sized nuclei and nucleoli, fine chromatin, no crowded nuclei, no stromal reaction, no psammoma bodies
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