Fig. 8From: Cervical myelopathy due to subaxial calcium pyrophosphate dihydrate (CPPD) deposition with simultaneous asymptomatic crowned dens syndrome: two case reportsMicroscopic evaluation (× 200, a; × 400, b) of the surgical specimen demonstrated degenerated ligamentum flavum with dark blue calcifications representing chondrocalcinosis. Microscopic evaluation (× 200, c; × 400, d) of the surgical specimen under polarized light showed rhomboid crystals that were positively birefringent in the blue calcification areaBack to article page