PMID- 29144811 OWN - NLM STAT- MEDLINE DCOM- 20180731 LR - 20230411 IS - 1530-891X (Print) IS - 1530-891X (Linking) VI - 24 IP - 1 DP - 2018 Jan TI - CONCORDANCE OF PRE-OPERATIVE CLINICAL STAGE WITH PATHOLOGIC STAGE IN PATIENTS >/=45 YEARS OLD WITH WELL-DIFFERENTIATED THYROID CANCER. PG - 27-32 LID - 10.4158/EP-2017-0095 [doi] AB - OBJECTIVE: Clinical stage (cStage) in thyroid cancer determines extent of surgical therapy and completeness of resection. Pathologic stage (pStage) is an important determinant of outcome. The rate of discordance between clinical and pathologic stage in thyroid cancer is unknown. METHODS: The National Cancer Data Base was queried to identify 27,473 patients >/=45 years old with cStage I through IV differentiated thyroid cancer undergoing surgery from 2008-2012. RESULTS: There were 16,286 (59.3%) cStage I patients; 4,825 (17.6%) cStage II; 4,329 (15.8%) cStage III; and 2,013 (7.3%) cStage IV patients. The upstage rate was 15.1%, and the downstage rate was 4.6%. For cStage II, there was a 25.5% upstage rate. The change in cStage was a result of inaccurate T-category in 40.8%, N-category in 36.3%, and both in 22.9%. On multivariate analysis, the patients more likely to be upstaged had papillary histology, tumors 2.1 to 4 cm, total thyroidectomy, nodal surgery, positive margins, or multifocal disease. Upstaged patients received radioiodine more frequently (75.3% vs. 48.1%; P<.001). CONCLUSION: Approximately 20% of cStage is discordant to pStage. Certain populations are at risk for inaccurate staging, including cT2 and cN0 patients. Upstaged patients are more likely to receive radioactive iodine therapy. ABBREVIATIONS: CI = confidence interval; cStage = clinical stage; DTC = differentiated thyroid cancer; NCDB = National Cancer Data Base; OR = odds ratio; pStage = pathologic stage; RAI = radioactive iodine. FAU - Calcatera, Natalie A AU - Calcatera NA FAU - Lutfi, Waseem AU - Lutfi W FAU - Suman, Paritosh AU - Suman P FAU - Suss, Nicholas R AU - Suss NR FAU - Wang, Chi-Hsiung AU - Wang CH FAU - Prinz, Richard A AU - Prinz RA FAU - Winchester, David J AU - Winchester DJ FAU - Moo-Young, Tricia A AU - Moo-Young TA LA - eng PT - Journal Article DEP - 20171116 PL - United States TA - Endocr Pract JT - Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists JID - 9607439 RN - 0 (Iodine Radioisotopes) RN - Thyroid cancer, follicular SB - IM CIN - Endocr Pract. 2018 Jan;24(1):124-125. PMID: 29144818 MH - Adenocarcinoma, Follicular/*pathology/surgery MH - Aged MH - Aged, 80 and over MH - Carcinoma, Papillary/*pathology/surgery MH - Female MH - Humans MH - Iodine Radioisotopes/therapeutic use MH - Logistic Models MH - Male MH - Margins of Excision MH - Middle Aged MH - Multivariate Analysis MH - Neck Dissection MH - Neoplasm Staging MH - Neoplasms, Multiple Primary/*pathology/surgery MH - Preoperative Period MH - Radiotherapy, Adjuvant MH - Retrospective Studies MH - Risk Factors MH - Thyroid Cancer, Papillary MH - Thyroid Neoplasms/*pathology/surgery MH - Thyroidectomy MH - Tumor Burden EDAT- 2017/11/18 06:00 MHDA- 2018/08/01 06:00 CRDT- 2017/11/18 06:00 PHST- 2017/11/18 06:00 [pubmed] PHST- 2018/08/01 06:00 [medline] PHST- 2017/11/18 06:00 [entrez] AID - S1530-891X(20)39350-2 [pii] AID - 10.4158/EP-2017-0095 [doi] PST - ppublish SO - Endocr Pract. 2018 Jan;24(1):27-32. doi: 10.4158/EP-2017-0095. Epub 2017 Nov 16.