<prompt> ACR-TIRADS scan for thyroid nodule characteristics include all exceptMarginEchogenicityVascularityShape  <response>: Ans. c VascularityRef: ACR-TIRADS journalACR-TIRADS is based on Composition Echogenicity Shape Margin Echogenic FociAll the above findings on USG are given points from 0 to 3 and total score calculated. Based on the total score TR-1 - Benign: No FNA needed TR-2 - Not suspicious: No FNA needed TR-3 - Mildly Suspicious: FNA if Size 2.5cm and Follow up if Size 1.5cm TR-4 - Moderately Suspicious FNA if Size 1.5cm and Follow up if size 1cm TR- 5 - Highly Suspicious FNA if Size 1cm and Follow up if size 0.5cm 