[99mTc]MIBI scintigraphy in a patient with thyroid follicular neoplasm: a case report and review of literature.

[99mTc]MIBI thyroid scintigraphy is a useful tool to differentiate benign from malignant thyroid nodules. This report aims to show the diagnostic performance of [99mTc]MIBI scintigraphy used in an 83-year-old woman who had a thyroidectomy about 7 years ago. She had a mass of thyroid which was very large, non-homogenous and painless. [99mTc]MIBI scintigraphy could be a pre-surgical method to investigate the follicular nodules and predicting the malignant form of thyroid nodules. Also, it will provide tissue information for [99mTc]MIBI images in thyroid lesions.