Preschooler with left neck mass Pediatric Imaging Chest June 8, 2020June 2, 2020 Transverse+sagittal US of the neck (above) shows the mass to have a starry sky appearance. Axial+coronal CT with contrast of the neck shows the mass to be inferior to the thyroid and contiguous with the thymus. The diagnosis was cervical thymus. Related Published June 8, 2020June 2, 2020