The clinical characteristics of rai refractory differentiated thyriod cancer

Le Ngoc Ha1, Nguyen Thi Lan Huong2, Nguyen Thi Nhung3,
1 Military Central Hospital 108
2 Institute of Radiation and Oncology Army
3 Central Military Hospital 108

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Abstract

SUMMARY


Objectives: to determine clinical characteristics of RAI refractory differentiated thyroid carcinoma patients.
Material and methods: 30 post-surgical and treated with I-131 differentiated thyroid carcinoma patients, diagnosed RAI refractory were enrolled in the study in 108 Military Centre Hospital from January 2017 to Jun 2017.
Results: RAI refractory differentiated thyroid carcinoma has more frequently seen in middle aged, female patients (female to male ratio 3.2/1). Papillary and folicullar carcinoma represents 86.7% and 6.7% respectively. 40% of patients were in stage I and 53.4% in stage VI (AJCC7). The distant metastases were detected in 13.3% of patients. The median of time from initial diagnosis to RAI refractory were 21.5 months. I-131 treatment courses were 2.47 ± 1.13. The mean total dose was 301,8 mCi. 70% of the patients were in group I; 10% in group II and the rate of group III and IV were 6.7 and 13.3% respectively according to the ATA RAI refractory classification of DTC. 80% of patients had one RAI refractory lesion; 76.8% had metastasis in the neck lymph nodes and 16.7% had recurrent malignant lesions in the thyroid bed.

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References

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