The Use of ^99mTc-Methoxy-isobutyl-isonitrile (sestaMIBI) Uptake on Scintigraphy (^99m-STS) in Amiodarone-Induced Thyrotoxicosis: Case Series and Review of the Literature

Table 1

Summary of the patient’s duration of amiodarone use and biochemical and radiological workup.

Patient	TSH	Free T4	Free T3	TRAb	TSI	Thyroid US	^99m-STS	Duration of amiodarone use prior to presentation
Patient 1	<0.001	1.3	3.1	Negative	Negative	MNG	AIT-1	1 year
Patient 2	<0.01	5.06	6	Negative	Negative	Mild diffuse enlargement	AIT-1	1 year
Patient 3	0.06	2.3	2.6	Negative	Negative	MNG (multiple benign FNA)	AIT-1	1 year
Patient 4	0.01	1.75	3.2	Negative	Mildly positive	Not done	AIT-2	2 years
Patient 5	<0.004	3.4	5.72	Negative	Negative	Mild diffuse enlargement	AIT-1	18 months