Scalpel sign

Last edit by Alaric Steinmetz on

The scalpel sign is a radiological sign in sagittal MRI sequences and gets its name from the scalpel-like deformation of the spinal cord. The scalpel sign can be a radiological indication of spinal arachnoidal webs [^1].

Imaging

Scalpell Sign MRI
MRI images of a scalpel sign in the thoracic spine. Figure adapted from Reardon et al. (2013)