Document Detail

Classical and follicular variant of papillary thyroid carcinoma: a comparative study on clinicopathologic features and long-term outcome.
MedLine Citation:
PMID:  16680590     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: The follicular variant of papillary thyroid carcinoma (FVPTC) is the most common histologic subtype of papillary thyroid carcinoma (PTC). However, it is still controversial whether FVPTC should behave differently from classical PTC (CPTC). The present study aimed at evaluating any potential difference in clinicopathologic features and long-term outcome of FVPTC as compared with CPTC. PATIENTS AND METHODS: Of 568 patients with PTC managed from 1973 to 2004, 308 were shown to have CPTC (54.2%) and 67 (11.8%) FVPTC after histologic review. The mean (+/- SD) follow-up period was 11.3 (+/- 8.9) years. The two groups were compared in terms of clinicopathological features, treatment received, and outcome regarding recurrence and disease-specific survival. RESULTS: There was no difference in age and gender ratio between the CPTC and FVPTC patients. Both groups had similar tumor characteristics in terms of tumor size, presence of multifocality, capsular invasion, lymphovascular permeation, and perineural infiltration. However, FVPTC patients had significantly fewer histologically confirmed cervical lymph node metastases (P = 0.027) and extrathyroidal involvement (P = 0.005). The proportion of bilateral resection, adjuvant radioactive iodine, and lymph node dissection did not differ significantly between the two groups. The FVPTC patients had a more favorable tumor risk by DeGroot classification (P = 0.003) and MACIS (Metastasis, Age, Completeness of excision, Invasiveness, and Size) score (P = 0.026). The 10- and 15-year actuarial disease-specific survivals did not differ significantly between FVPTC and CPTC patients (96.2% versus 90.7% and 96.2% versus 89.1%, respectively). CONCLUSIONS: Although patients with FVPTC had more favorable clinicopathologic features and a better tumor risk group profile, their long-term outcome was similar to that of CPTC patients.
Brian Hung-Hin Lang; Chung-Yau Lo; Wai-Fan Chan; Alfred King-Yin Lam; Koon-Yat Wan
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  World journal of surgery     Volume:  30     ISSN:  0364-2313     ISO Abbreviation:  World J Surg     Publication Date:  2006 May 
Date Detail:
Created Date:  2006-05-08     Completed Date:  2006-10-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7704052     Medline TA:  World J Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  752-8     Citation Subset:  IM    
Department of Surgery, University of Hong Kong Medical Centre, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China.
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MeSH Terms
Adenocarcinoma, Papillary / mortality,  pathology*,  surgery
Aged, 80 and over
Combined Modality Therapy
Follow-Up Studies
Lymph Node Excision
Middle Aged
Neoplasm Recurrence, Local
Patient Selection
Retrospective Studies
Survival Analysis
Thyroid Neoplasms / mortality,  pathology*,  surgery
Thyroidectomy / mortality*
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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