Classic Papillary Thyroid Carcinoma with Tall Cell Features and Tall Cell Variant Have Similar Clinicopathologic Features.
- Author:
Woo Jin OH
1
;
Young Sub LEE
;
Uiju CHO
;
Ja Seong BAE
;
Sohee LEE
;
Min Hee KIM
;
Dong Jun LIM
;
Gyeong Sin PARK
;
Youn Soo LEE
;
Chan Kwon JUNG
Author Information
1. Department of Hospital Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea. ckjung@catholic.ac.kr
- Publication Type:Original Article
- Keywords:
Thyroid neoplasms;
Histologic types;
Classification;
Tall cell features
- MeSH:
Classification;
Humans;
Lymph Nodes;
Mutation Rate;
Neoplasm Metastasis;
Retrospective Studies;
Thyroid Neoplasms*
- From:Korean Journal of Pathology
2014;48(3):201-208
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND: The tall cell variant of papillary thyroid carcinoma (TCVPTC) is more aggressive than classic papillary thyroid carcinoma (PTC), but the percentage of tall cells needed to diagnose TCVPTC remains controversial. In addition, little is known about the clinicopathologic features of classic PTC with tall cell features (TCF). METHODS: We retrospectively selected and reviewed the clinicopathologic features and presence of the BRAF mutation in 203 cases of classic PTC, 149 cases of classic PTC with TCF, and 95 cases of TCVPTCs, which were defined as PTCs having <10%, 10-50%, and > or =50% tall cells, respectively. RESULTS: TCVPTCs and classic PTCs with TCF did not vary significantly in clinicopathologic characteristics such as pathologic (p) T stage, extrathyroidal extension, pN stage, lateral lymph node metastasis, or BRAF mutations; however, these features differed significantly in TCVPTCs and classic PTCs with TCF in comparison to classic PTCs. Similar results were obtained in a subanalysis of patients with microcarcinomas (< or =1.0 cm in size). CONCLUSIONS: Classic PTCs with TCF showed a similar BRAF mutation rate and clinicopathologic features to TCVPTCs, but more aggressive characteristics than classic PTCs.
