Preventive Transoral Endoscopic Thyroidectomy by Vestibular Approach in 6-Year-Old Patient with the High-Risk RET C634R Germline Mutation.

Aggressiveness and age of manifestation of medullary thyroid cancer depend on the risk level of germline RET mutations. For high-risk mutations, preventive thyroidectomy is recommended at young age. In recent years, endoscopic operations for thyroid cancer were introduced in clinical practice.