Fig. 2From: Persistent Graves’ hyperthyroidism despite rapid negative conversion of thyroid-stimulating hormone-binding inhibitory immunoglobulin assay results: a case reportUltrasonography of the thyroid gland (July 2013). a Ultrasonography showing heterogeneous and low echogenicity in a diffusely enlarged thyroid gland. No tumor was detected in the thyroid gland. b Color flow Doppler imaging revealing increased blood flowBack to article page