Radiation exposure does not significantly contribute to the risk of recurrence of Chernobyl thyroid cancer.

Papillary thyroid carcinoma (PTC) in patients exposed to environmental radioiodine after the Chernobyl accident is thought to have a relatively aggressive clinical course. Long-term results of treatment are not well known, especially in comparison with sporadic PTC

2017 Russian clinical practice guidelines for differentiated thyroid cancer diagnosis and treatment

The Russian clinical practice guidelines for diagnosis and treatment of differentiated thyroid cancer is dedicated to the management of patients with differentiated thyroid cancer. The guideline modifications 2016 include the following matters: indication for fine-needle aspiration biopsy, calcitonin screening, standards for biopsy results, new positions of postoperative risk stratification, indication for suppressive therapy and thyroid replacement therapy, targeted therapy in patients with radioiodine-refractory differentiated thyroid cancer