Axial T2-weighted neck MRI. Cyst appears as a hyperintense mass located posterior to the right lobe of the thyroid. Trachea (Tr). Protein-rich fluid is hyperintense on T2-weighted images.

The retired tennis star, who turned 43 last month, posted Wednesday on social media that she found a lump on her neck in May, had an MRI exam, and was told she didn't need to get it removed if she ...