CTCAE Grade 4 Tongue Intra-Operative Injury

Life threatening consequences; disabling

Life-threatening myxedema coma

Life-threatening consequences (e.g., thyroid storm)

Laboratory findings and life-threatening or disabling consequences, (e.g., CNS hemorrhage/bleeding or thrombosis/embolism or renal failure)

Embolic event including pulmonary embolism or life-threatening thrombus