Meningocele Due to Closed Spina Bifida Mimicking a Metastasis of Papillary Thyroid Carcinoma on Whole Body Radioactive Iodine Scan

Thyroid ◽  
2011 ◽  
Vol 21 (12) ◽  
pp. 1401-1402 ◽  
Author(s):  
Sergio Baldari ◽  
Giacomo Sturniolo ◽  
Maria Antonia Violi ◽  
Mariacarla Moleti ◽  
Alfredo Campennì ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Spina Bifida ◽  
Thyroid Carcinoma ◽  
Radioactive Iodine ◽  
Whole Body ◽  
Papillary Thyroid ◽  
Iodine Scan

scholarly journals Focal Bronchiectasis Causing Abnormal Pulmonary Radioiodine Uptake in a Patient with Well-Differentiated Papillary Thyroid Carcinoma

2012 ◽  
Vol 2012 ◽  
pp. 1-3
Author(s):  
Ash Gargya ◽  
Elizabeth Chua
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Radioactive Iodine ◽  
Differentiated Thyroid Carcinoma ◽  
Whole Body ◽  
Iodine Uptake ◽  
Papillary Thyroid ◽  
Radioiodine Uptake ◽  
Well Differentiated ◽  
Radioactive Iodine Uptake

Background. False-positive pulmonary radioactive iodine uptake in the followup of differentiated thyroid carcinoma has been reported in patients with certain respiratory conditions.Patient Findings. We describe a case of well-differentiated papillary thyroid carcinoma treated by total thyroidectomy and radioiodine ablation therapy. Postablation radioiodine whole body scan and subsequent diagnostic radioiodine whole body scans have shown persistent uptake in the left hemithorax despite an undetectable stimulated serum thyroglobulin in the absence of interfering thyroglobulin antibodies. Contrast-enhanced chest computed tomography has confirmed that the abnormal pulmonary radioiodine uptake correlates with focal bronchiectasis.Summary. Bronchiectasis can cause abnormal chest radioactive iodine uptake in the followup of differentiated thyroid carcinoma.Conclusions. Recognition of potential false-positive chest radioactive iodine uptake, simulating pulmonary metastases, is needed to avoid unnecessary exposure to further radiation from repeated therapeutic doses of radioactive iodine.

scholarly journals Predictors of thyroglobulin in the lymph nodes recurrence of papillary thyroid carcinoma undergoing total thyroidectomy

BMC Surgery ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Zhichao Xing ◽  
Yuxuan Qiu ◽  
Zhe Li ◽  
Lingyun Zhang ◽  
Yuan Fei ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Lymph Nodes ◽  
Total Thyroidectomy ◽  
Radioactive Iodine ◽  
Independent Predictor ◽  
Central Neck Dissection ◽  
American Thyroid Association ◽  
Papillary Thyroid ◽  
Serum Thyroglobulin

Abstract Background To investigate the association between postoperative lymph nodes (LNs) recurrence and distinct serum thyroglobulin (Tg) levels in patients with papillary thyroid carcinoma (PTC). Methods This study included PTC patients who underwent total thyroidectomy (TT) with at least central neck dissection and then re-operated due to recurrence of LNs between January 2013 and June 2018. These patients were grouped by negative or positive serum Tg levels according to the American Thyroid Association guidelines. Results Of the 60 included patients, 49 underwent radioactive iodine (RAI) treatment. Maximum unstimulated Tg (uTg) ≥ 0.2 ng/mL were associated with larger diameter of recurrent LNs (P = 0.027), and higher rate of metastatic LNs (P < 0.001). Serum-stimulated Tg (off-Tg) ≥ 1 ng/mL (P = 0.047) and unstimulated Tg (on-Tg) ≥ 0.2 ng/Ml (P = 0.013) were associated with larger diameter of recurrent LNs. Number of metastatic LNs ≥ 8 was an independent predictor for postoperative maximum uTg ≥ 0.2 ng/mL (OR = 8.767; 95% CI = 1.392–55.216; P = 0.021). Ratio of metastatic LNs ≥ 25% was an independent predictor for off-Tg ≥ 1 ng/mL (OR = 20.997; 95% CI = 1.649–267.384; P = 0.019). Conclusion Postoperative Tg-positive status was associated with larger size of recurrent LNs. Number of metastatic LNs ≥ 8 and ratio of metastatic LNs ≥ 25% were independent predicators for uTg-positive and off-Tg-positive status, respectively.

scholarly journals Papillary thyroid carcinoma in cervical lymph nodes with vanished thyroid gland after ablation of Graves’ disease by radioactive iodine

2019 ◽  
Vol 101 (5) ◽  
pp. e122-e124
Author(s):  
O Hamdy ◽  
S Raafat ◽  
GA Saleh ◽  
K Atallah ◽  
Mahmoud M Saleh ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Gland ◽  
Thyroid Carcinoma ◽  
Lymph Nodes ◽  
Radioactive Iodine ◽  
Rare Condition ◽  
Graves Disease ◽  
Papillary Thyroid ◽  
Cervical Lymph Nodes ◽  
Thyroid Ablation

Primary thyroid carcinoma after thyroid ablation by radioactive iodine is rare. We present a very rare condition of lateral apparent papillary thyroid carcinoma eight years after receiving radioactive iodine for thyrotoxicosis, which led to complete anatomical and functional involution of the thyroid gland.

SIZE OF THE LARGEST METASTATIC FOCUS TO THE LYMPH NODE IS ASSOCIATED WITH INCOMPLETE RESPONSE OF PN1 PAPILLARY THYROID CARCINOMA

2019 ◽  
Vol 25 (9) ◽  
pp. 887-898 ◽  
Author(s):  
Yuying Deng ◽  
Guoquan Zhu ◽  
Wei Ouyang ◽  
Liqin Pan ◽  
Huijuan Feng ◽  
...  
Keyword(s):  
Lymph Node ◽  
Papillary Thyroid Carcinoma ◽  
Confidence Interval ◽  
Thyroid Carcinoma ◽  
Odds Ratio ◽  
Radioactive Iodine ◽  
American Thyroid Association ◽  
Papillary Thyroid ◽  
Metastatic Focus ◽  
Incomplete Response

Objective: To evaluate the influence of the size of the metastatic focus in lymph nodes (LNs) on therapeutic response among papillary thyroid cancer (PTC) and cervical pathologically proven LN metastases (pN1). Methods: Patients with pN1 PTC who underwent total or near-total thyroidectomy, LN dissection, and postoperative radioactive iodine therapy in a university hospital between 2014 and 2016 were retrospectively reviewed. Furthermore, 554 patients were assigned to three groups according to the size of the metastatic focus in the LNs (≤0.2 cm, 0.2 to 1.0 cm, ≥1.0 cm). Structural incomplete response (SIR) was defined as structural or functional evidence of disease with any thyroglobulin level and/or anti-thyroglobulin antibodies. Results: Among the 554 patients, the proportion of patients with SIR was 2.5% (4/161) in group 1, 13.9% (37/267) in group 2, and 46.8% (59/126) in group 3 (χ2 = 100.073; P<.001). The optimal cutoff value of the size of the largest metastatic focus to the LNs was 0.536 cm to predict SIR with a corresponding sensitivity of 0.82, a specificity of 0.716, and an area under the curve of 0.821 (95% confidence interval [CI], 0.777 to 0.864; P<.001). Size of the largest metastatic focus to the LNs was confirmed to be an independent predictive factor for SIR (odds ratio, 9.650; 95% CI, 4.925 to 18.909; P<.001). Conclusion: In patients with pN1 PTC, there is an association between the size of the largest metastatic focus to the LNs and incomplete response. Abbreviations: AJCC = American Joint Committee on Cancer; ATA = American Thyroid Association; BIR = biochemical incomplete response; CI = confidence interval; ER = excellent response; ETE = extranodal extension; 18F-FDG = 18F-fluorodeoxyglucose; IDR = indeterminate response; LN = lymph node; OR = odds ratio; PET/CT = positron emission tomography/computed tomography; pN1 = pathologically proven LN metastases; PTC = papillary thyroid carcinoma; RAI = radioactive iodine; ROC = receiver operating characteristic; SIR = structural incomplete response; sTg = stimulated thyroglobulin; TgAb = anti-thyroglobulin antibody; TSH = thyroid-stimulating hormone

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