1. Case Report: Posterolateral Epidural Supra-C2-Root Approach (PESCA) for Biopsy of a Retro-Odontoid Lesions in Same Sitting After Occipitocervical Fixation and Decompression in a Case of Crowned Dens Syndrome With Brainstem Compression and Displacement
   Patrick Haas et al, 2022, Frontiers in Surgery CrossRef
2. Crowned Dens Syndrome: A Rare Complication of Calcium Pyrophosphate Crystal Deposition Disease
   Thales Nogueira Gomes et al, 2022, Cureus CrossRef