Normal MRI

The MRI of the thyroid reveals the appearance of the thyroid on T1 weighted sequence without contrast (a), T1 with contrast (b), T2 weighted image (C), and a STIR image. The normal gland appears remarkably similar on all 4 phases showing mild enhancement and mild STIR hyperintensity.

Courtesy Ashley Davidoff MD Copyright 2010 97332c02L.8

Thyroglossal Duct Cyst T2 Weighted Sequence

The MRI T2 weighted image through the inferior aspect of the thyroid gland (pink) shows a cystic structure (yellow), intensely T2 bright (a), in the region of the isthmus in the ventral and midline position of the gland. Findings are consistent with a thyroglossal duct cyst

Courtesy Ashley Davidoff MD Copyright 2010 97310cL.8

Multinodular Gland Abnormal Texture on STIR Sequence

The MRI is from an 80 year old male presents with an asymptomatic multinodular goiter, consisting many nodules of varying size as identified by previous ultrasound.. The MRI using a STIR sequence shows a normal size and shape to the gland but multiple non border forming nodules (green nodules) are identified within the matrix of the gland (pink).One of the nodules (c,d) overlaid in yellow is cystic in nature. It is bright on the STIR sequence (c). The internal jugular veins (blue) form a lateral neighbor and deform the relatively soft gland. The common carotid arteries (red) form a posterolateral relation to the gland. The trachea (black) is surrounded anteriorly and laterally by the gland. These findings are consistent with a non toxic multinodular thyroid gland, – not truly a goiter since the gland is not enlarged.

Courtesy Ashley Davidoff MD Copyright 2010  94790c03.8s94790c03.8s