scholarly journals Risk stratification of 282 differentiated thyroid cancers found incidentally in 1369 total thyroidectomies according to the 2015 ATA guidelines; implications for management and treatment

2018 ◽  
Vol 100 (5) ◽  
pp. 357-365 ◽  
Author(s):  
I Christakis ◽  
S Dimas ◽  
ID Kafetzis ◽  
N Roukounakis
Keyword(s):  
Thyroid Carcinoma ◽  
Preoperative Diagnosis ◽  
Radioactive Iodine ◽  
Risk Group ◽  
Differentiated Thyroid Carcinoma ◽  
Stage I ◽  
American Thyroid Association ◽  
Intermediate Risk ◽  
Incidental Group ◽  
Iodine Treatment

Introduction The purpose of this study was to evaluate the incidence of incidental differentiated thyroid carcinoma in thyroid operations for a benign preoperative diagnosis, to identify the risk factors involved and to risk stratify the cancer patients according to the 2015 American Thyroid Association (ATA) guidelines. Materials and methods The study was a retrospective review of all thyroidectomy operations performed in a single institution (January 2004 to January 2009). We excluded patients with a preoperative diagnosis of thyroid malignancy. Results Incidental differentiated thyroid carcinoma was diagnosed in 282/1369 patients (21%). The incidental group had a significantly higher number of males (19% vs 14%, P = 0.033) and a higher number of patients with histopathological evidence of thyroiditis (35% vs 25%, P = 0.004). There was a higher number of lymph nodes present in the incidental group but numbers did not reach statistical significance (17% vs 13%, P = 0.079). There were 270 cases in the ATA low-risk group (96%) and 12 cases in the ATA intermediate-risk group (4%). Patients with an ATA intermediate risk had a statistically higher number of capsule invasion, extrathyroidal extension and angioinvasion (P < 0.001, P < 0.001 and P < 0.001, respectively). Overall, 22% of patients with an incidental differentiated thyroid carcinoma should be considered for radioactive iodine 131I treatment. 29 of the 191 patients in American Joint Committee on Cancer stage I should be considered for radioactive iodine treatment (15%). Conclusions Males and patients with thyroiditis are at a higher risk for an incidental differentiated thyroid carcinoma. One of every five of patients diagnosed with cancer will need radioactive iodine treatment, even some patients with stage I disease.

Predictive Value of Gross Extranodal Extension for Differentiated Thyroid Carcinoma Persistence/Recurrence

2021 ◽  
pp. 019459982110231
Author(s):  
Ying Kou ◽  
Guohua Shen ◽  
Zhuzhong Cheng ◽  
Anren Kuang
Keyword(s):  
High Risk ◽  
Thyroid Carcinoma ◽  
Risk Group ◽  
Differentiated Thyroid Carcinoma ◽  
Individual Risk ◽  
Intermediate Risk ◽  
Entire Cohort ◽  
Gene Group ◽  
Extranodal Extension ◽  
Disease Persistence

Objective We systematically investigated the predictive value of gross extranodal extension (gENE) for differentiated thyroid carcinoma persistence/recurrence. Study Design Retrospective study. Setting A tertiary care hospital. Methods This study was divided into 2 groups according to gENE status: the gENE group and non-gENE group. We compared the disease persistence/recurrence rates of these 2 groups in the entire cohort and by individual risk group (intermediate/high risk), analyzed whether gENE was an independent risk factor for disease persistence/recurrence, and explored the impact of gENE-specific features on disease persistence/recurrence. Results There were 989 patients who satisfied the inclusion criteria: 57 patients in the gENE group and 932 in the non-gENE group. The disease persistence/recurrence rate of the gENE group was higher than that of the non-gENE group in the entire cohort and by individual risk group ( P < .05 for each). Unexpectedly, the outcomes of the gENE group with intermediate risk were similar to those of the non-gENE group with high risk ( P = .72). For the entire cohort, gENE was an independent predictor for disease persistence/recurrence (odds ratio, 2.89; 95% CI, 1.39-6.00; P = .005). Specific features of gENE ( P > .05 for each) were not related to disease persistence/recurrence. Conclusion Patients with gENE and intermediate risk might be regraded as high risk. Specific features of gENE have no impact on disease persistence/recurrence.

scholarly journals Reappraising the Diagnostic Accuracy of Post-Treatment Whole-Body Scans for Differentiated Thyroid Carcinoma

2020 ◽  
Vol 52 (12) ◽  
pp. 834-840
Author(s):  
Carla Fernanda Nava ◽  
Rafael Selbach Scheffel ◽  
André Borsatto Zanella ◽  
Flavio Zelmanovitz ◽  
Ana Luiza Maia ◽  
...  
Keyword(s):  
High Risk ◽  
Thyroid Carcinoma ◽  
Diagnostic Accuracy ◽  
Distant Metastasis ◽  
False Negative ◽  
Differentiated Thyroid Carcinoma ◽  
Post Treatment ◽  
Whole Body ◽  
American Thyroid Association ◽  
Intermediate Risk

AbstractInitial treatment for differentiated thyroid carcinoma (DTC) often consists of surgery and the administration of radioiodine. In this context, post-treatment Whole-Body Scans (ptWBS) are currently recommended, but data on its diagnostic accuracy are rare. The aim of the study was to evaluate the performance of ptWBS for distant metastasis in DTC patients. We included DTC patients who received radioiodine and underwent ptWBS between 2009–2015. The medical data were independently reviewed by two specialists to evaluate the concordance of positive distant ptWBS uptake and distant metastasis documented by imaging exams (gold standard). We studied 268 DTC patients. The mean age was 46±16 years (82% women), and papillary thyroid carcinoma was diagnosed in 87% of the patients. The median tumor size was 2.7 cm, 40% had lymph node involvement, and 11% had distant metastasis. Twenty-eight patients (10%) had distant ptWBS uptake, and nine of them (32%) were false-positives. In addition, nine false-negative ptWBS uptakes were identified. The overall performance of ptWBS showed 68% sensitivity and 96% specificity with significantly different performance according to the American Thyroid Association (ATA) risk groups. While the ptWBS performance for ATA low-intermediate-risk showed 29% sensitivity, 97% specificity, and Kappa of 0.19, the ATA high-risk group ptWBS displayed high sensitivity (82%), specificity (100%), and good agreement (Kappa 0.74). ptWBS is useful for a subgroup of ATA high-risk DTC patients. The overall poor performance of ptWBS suggests that it should be reconsidered for routine use in ATA at low to intermediate risk: the exam has little value to this subgroup.

Treatment outcomes in pediatric differentiated thyroid carcinoma

2018 ◽  
Vol 31 (10) ◽  
pp. 1117-1122 ◽  
Author(s):  
Nisha Bhavani ◽  
Kingini Bhadran ◽  
Vasantha Nair ◽  
Usha V. Menon ◽  
Praveen V. Pavithran ◽  
...  
Keyword(s):  
Thyroid Carcinoma ◽  
Differentiated Thyroid Carcinoma ◽  
Response To Therapy ◽  
American Thyroid Association ◽  
Intermediate Risk ◽  
Cure Rate ◽  
High Risk Disease ◽  
Clinical Records

Abstract Background Until the American Thyroid Association (ATA) guidelines on management of pediatric differentiated thyroid carcinoma (DTC) became available in 2015, all children with DTC were treated like adults. This study aims to investigate the outcome of pediatric DTC and factors predicting the response to therapy in pediatric DTC managed according to adult guidelines. Methods Clinical records of 41 children less than 18 years of age diagnosed with DTC followed from 2007 in a single center were reviewed. According to the new ATA classification for pediatric DTC, five had low-risk, 28 had intermediate-risk and eight had high-risk disease at presentation. Results There was no mortality or recurrence in this cohort of pediatric DTC patients and the cure rate was 46% during a mean follow-up of 44 months when they were managed according to adult guidelines. Neither the new ATA risk classification nor any clinicopathological character was identified which could predict the response to therapy. The new ATA guidelines would have avoided 27% of the radioiodine therapies given. Conclusions This study showed that DTC in children managed according to adult guidelines had a good cure rate. The new ATA guidelines on pediatric DTC might have drastically reduced the number of radioiodine therapies in the affected children. Long term prospective studies are needed to validate the benefits and risks of both these approaches.

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