scholarly journals Detection of early stage medullary thyroid carcinoma by measuring serum calcitonin using an electro chemiluminescence immuno-assay: A case report of a young Japanese woman with a high-risk RET mutation

2017 ◽  
Vol 26 (4) ◽  
pp. 243-249 ◽  
Author(s):  
Yuki Abe ◽  
Shinya Tsukano
2006 ◽  
Vol 24 (11) ◽  
pp. 1705-1711 ◽  
Author(s):  
Jean-François Chatal ◽  
Loïc Campion ◽  
Françoise Kraeber-Bodéré ◽  
Stephane Bardet ◽  
Jean-Philippe Vuillez ◽  
...  

Purpose No effective therapy is currently available for the management of patients with metastatic medullary thyroid carcinoma (MTC). The efficacy of pretargeted radioimmunotherapy (pRAIT) with bispecific monoclonal antibody (BsMAb) and a iodine-131 (131I) –labeled bivalent hapten is evaluated. Patients and Methods Twenty-nine patients with advanced, progressive MTC, as documented by short serum calcitonin doubling times (Ct DTs), received an anti–carcinoembryonic antigen (CEA)/anti–diethylenetriamine pentaacetic acid (DTPA) –indium BsMAb, followed 4 days later by a 131I-labeled bivalent hapten. Overall survival (OS) was compared with 39 contemporaneous untreated MTC patients with comparable prognostic indicators. Results OS was significantly longer in high-risk, treated patients (Ct DT < 2 years) than in high-risk, untreated patients (median OS, 110 v 61 months; P < .030). Forty-seven percent of patients, defined as biologic responders by a more than 100% increase in CtDT, experienced significantly longer survival than nonresponders (median OS, 159 v 109 months; P < .035) and untreated patients (median OS, 159 v 61 months; P < .010). Treated patients with bone/bone-marrow disease had a longer survival than patients without such involvement (10-year OS, 83% v 14%; P < .023). Toxicity was mainly hematologic and related to bone/bone-marrow tumor spread. Conclusion pRAIT against CEA induced long-term disease stabilization and a significantly longer survival in high-risk patients with Ct DTs less than 2 years, compared with similarly high-risk, untreated patients. Ct DT and bone-marrow involvement appear to be prognostic indicators in MTC patients who undergo pRAIT.


Thyroid ◽  
2008 ◽  
Vol 18 (8) ◽  
pp. 895-899 ◽  
Author(s):  
José Miguel Dora ◽  
Maria Heloisa Busi da Silva Canalli ◽  
Clarissa Capp ◽  
Márcia Khaled Puñales ◽  
José Gilberto H. Vieira ◽  
...  

Author(s):  
Beliz Camur ◽  
Mehmet Celik ◽  
Buket Yilmaz Bulbul ◽  
Semra Ayturk ◽  
Ebru Tastekin ◽  
...  

1980 ◽  
Vol 17 (3) ◽  
pp. 323-330 ◽  
Author(s):  
G. G. Long ◽  
R. M. Clemmons ◽  
H. Heath

A medullary carcinoma of the thyroid in a dog first became evident because of a distant metastasis. The histologic characteristics of the tumor differ from those previously reported in dogs in that this tumor was highly malignant; anaplasia and mitotic figures were common. The diagnosis was substantiated by radioimmunoassay for calcitonin. Serotonin and 5-hydroxytryptophan also were elevated in the neoplastic tissue. The relation of the biochemical alterations to the clinical course was not clear.


2013 ◽  
Vol 57 (4) ◽  
pp. 312-316 ◽  
Author(s):  
Pedro Weslley Rosário ◽  
Gustavo Cancela Penna ◽  
Kamilla Brandão ◽  
Bárbara Érika Souza

OBJECTIVE: To evaluate the usefulness of preoperative serum calcitonin (sCT) in patients with nodular disease without suspicion of medullary thyroid carcinoma (MTC) in history or cytology. PATIENTS AND METHODS: sCT was measured before thyroidectomy in 494 patients with nodular disease who had no family history of MTC or multiple endocrine neoplasia type 2, and no cytological suspicion of MTC. RESULTS: Basal sCT was < 10 ng/mL in 482 patients and none of them had MTC. One patient with basal sCT > 100 pg/mL had MTC. Among the 11 patients with basal sCT between 10 and 100 pg/mL, MTC was diagnosed in only one. The two patients with MTC were submitted to total thyroidectomy, combined with elective lymph node dissection indicated exclusively based on hypercalcitoninemia, and sCT was undetectable after six months. CONCLUSIONS: Preoperative sCT is useful for the detection of sporadic MTC in patients with nodular disease, even in the absence of suspicious history or cytology.


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