Stable and asymptomatic disease
Progrssive and/or symptomatic multiple lesions
Negative
Stable lymph node≤ 1 cm (short axis) and asymtomatic
Local treatment
Progressivelymph node≤ 1 cm (short axis) and/or symptomatic
Anatomic/functional imaging
Lymph node＞1 cm (short axis)
Observation
Local recurrence
Progressive and/or symptomatic single lesion
Biochemical evidence of disease
Surgery
Distant metastasis
RR-DTC
Systematic treatment
Observasion
Tg 10 ng/mL or rising Tg values
