Newborn with a sacral dimple Pediatric Imaging Neurological March 14, 2025January 9, 2025 Sagittal US of the spine (above) shows an extremely low lying conus which appears to extend as far as S1. Sagittal T2 MRI without contrast of the spine (below) shows the conus to be located around L5-S1. The diagnosis was tethered cord. Related Published March 14, 2025January 9, 2025