Thyroid Algorithms and Reference
• Thyroid nodule workup - update- not every nodule demonstrated on u/s needs biopsy. Use TI-RADs to triage.
ACR TI-RADS (2017) action recommendations:
TR 5: FNA if equal to or greater than 1 cm; follow-up if 0.5-0.9 cm every year for 5 years.
TR 4: FNA if equal to or greater than 1.5 cm; follow-up if 1-1.4 cm in 1, 2, 3 and 5 years.
TR 3: FNA if equal to or greater than 2.5 cm; follow-up if 1.5-2.4 cm in 1, 3 and 5 years.
TR 2 & TR 1: No FNA or follow-up.
Reference: Journal of the American College of Radiology. 2017; Vol. 14; Issue 5: 587-595.
• Bethesda thyroid cytopathology 2023- Risk of Malignancy and Usual Actions
• Possible (usual) management according to 2023 Bethesda category
