External Radiation Treatment for Thyroid Carcinoma

1992 ◽  
pp. 182-203 ◽  
Author(s):  
Edward Merker
2013 ◽  
Vol 18 ◽  
pp. S58
Author(s):  
M. Casasús Farré ◽  
F. Mestre Mestre ◽  
C. Nicolau Martorell ◽  
M. Coca Huertas ◽  
E. Miró Nadal ◽  
...  

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Mark J. Stavas ◽  
Eric T. Shinohara ◽  
Albert Attia ◽  
Matthew S. Ning ◽  
Jeffrey M. Friedman ◽  
...  

Purpose. Anaplastic thyroid carcinoma (ATC) is a rare but aggressive tumor with limited survival. To date, the ideal radiation treatment schedule, one that balances limited survival with treatment efficacy, remains undefined. In this retrospective series we investigate the effectiveness and tolerability of hypofractionated radiation therapy in the treatment of ATC.Methods. 17 patients with biopsy proven ATC treated between 2004 and 2012 were reviewed for outcomes and toxicity. All patients received short course radiation.Results. The most commonly prescribed dose was 54 Gy in 18 fractions. Median survival was 9.3 months. 47% of patients were metastatic at diagnosis and the majority of patients (88%) went on to develop metastasis. Death from local progression was seen in 3 patients (18%), 41% experienced grade 3 toxicity, and there were no grade 4 toxicities.Conclusions. Here we demonstrated the safety and feasibility of hypofractionated radiotherapy in the treatment of ATC. This approach offers shorter treatment courses (3-4 weeks) compared to traditional fractionation schedules (6-7 weeks), comparable toxicity, local control, and the ability to transition to palliative care sooner. Local control was dependent on the degree of surgical debulking, even in the metastatic setting.


2020 ◽  
Author(s):  
Sean M McBride ◽  
Kimberly Bundick ◽  
Harper Hubbeling ◽  
Morgan Freret ◽  
Leslie Modlin ◽  
...  

Background: In an attempt to reduce interruptions in radiation treatment, our department implemented universal SARS-CoV-2 PCR testing during the peak of the New York City COVID-19 epidemic. Methods: Starting 4/18/20, outpatients coming into the Department of Radiation Oncology for either simulation or brachytherapy were required to undergo PCR testing for SARS-CoV-2. Starting on 5/6/20, patients were offered simultaneous SARS CoV-2 IgG antibody testing. Results: Between 4/18/20-6/25/20, 1360 patients underwent 1,401 outpatient screening visits (Table 1). Of the patients screened, 411 were screened between 4/18/20 and 5/6/20 (Phase 1) with PCR testing: 13 (3.1%) patients were PCR positive. From 5/7/20 to 6/25/20, 990 patients were scheduled for both PCR and antibody testing (Phase 2), including 41 previously screened in Phase 1. Of those with known antibody status (n=952), 5.5% were seropositive. After 5/21/20, no screened patient (n=605) tested PCR positive. In the month prior to screening (3/17/20-4/19/20), 24 of 625 patients initiating external radiation had treatment interrupted due to COVID-19 infection (3.8%) vs 7 of 600 patients (1.1%) in the month post screening (4/20/20-5/24/20) (p=0.002). Conclusions: State-wide mitigation efforts, coupled with intensive departmental screening, helped prevent interruptions in radiation during the COVID-19 epidemic that could have compromised treatment efficacy.


2012 ◽  
Vol 2 (3) ◽  
pp. 249-262
Author(s):  
Angel I. Blanco ◽  
Bin S. Teh ◽  
Laura A. Dawson ◽  
Ramiro Pino ◽  
Arnold C. Paulino ◽  
...  

2003 ◽  
Vol 50 (3) ◽  
pp. 56-60
Author(s):  
Vladan Zivaljevic ◽  
Ivan Paunovic ◽  
Aleksandar Diklic ◽  
Ksenija Krgovic ◽  
Rastko Zivic ◽  
...  

Thyroid carcinomas arise from follicular cells (papillary, follicular, Hurthle, anaplastic), parafollicular cells (medullary) and stroma (lymphoma, sarcoma?). Gradation and prognostic factors are different for every one of histological type. Most patients with papillary and follicular thyroid cancer have an excellent prognosis. At the other extreme is anaplastic thyroid cancer whose usual mean survival can be measured in months. Exposure to external radiation and living in endemic goiter area increase the frequency of thyroid cancer. Medullary thyroid carcinoma is often familial and may occur in associations with the multiple endocrine neoplasia syndromes.


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