1. Thyroid imaging

5. Gamma camera

6. ultrasound Non ionizing radiation Clear out the nature of a nodule,,weather cystic or solid Readily available method But it is not able to differentiate benign from malignant nodule,how ever the majority of thyroid nodules are benign

7. Ultrasound aid for a needle guided biopsy Son graphic features favoring benign lesion: large cystic component, hyper echoic nodule and coma tail artifact. Son graphic features favoring malignant lesion: hypo echoic nodule, micro calcification, taller than it is wide and local invasive to surrounding structures

8. Normal thyroid imaging

12. Neck swelling associated with dyspnea and palpitation

13. Neglected LT thyroid lobe mass