Thyroid gland
Other carcinoma
Well differentiated carcinoma, NOS

Topic Completed: 1 October 2016

Minor changes: 18 March 2019

Copyright: 2002-2018,, Inc.

PubMed Search: NOS thyroid

Shuanzeng Wei, M.D., Ph.D.
Page views in 2019: 867
Page views in 2020 to date: 516
Cite this page: Wei S. Well differentiated carcinoma, NOS. website. Accessed July 10th, 2020.
Definition / general
  • Encapsulated follicular derived neoplasm with tumor capsular or vascular invasion and questionable nuclear features of papillary carcinoma (Endocr Pathol 2005;16:279)
  • Malignant, but cannot distinguish between papillary and follicular carcinoma
  • Terminology proposed by Chernobyl pathologists (Int J Surg Pathol 2000;8:181)
Essential features
  • Follicular derived carcinoma with hybrid features of both follicular carcinoma and minor nuclear features of papillary carcinoma
Microscopic (histologic) images

Images hosted on PathOut servers:

Contributed by Shuanzeng Wei, M.D., Ph.D.

Questionable nuclear
features of papillary

Differential diagnosis
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