Study Design Case report and review of the literature. Objective A retro-odontoid mass is a
rare cause of cervical compression and myelopathy. The differential diagnosis includes the …

The retro-odontoid pseudotumor is often concurrent with atlantoaxial subluxation (AAS).
Therefore, the pseudotumor is relatively common in rheumatoid arthritis (RA) but rare in …

BACKGROUND Craniocervical junction and subaxial cervical spinal manifestations of
calcium pyrophosphate deposition disease are rarely encountered. The authors presented a …

An 86-year-old male presented with progressive myelopathy due to retro-odontoid massive
deposits of calcium pyrophosphate dihydrate (CPPD) crystals. Magnetic resonance imaging …

Background There are few reports of cervical myelopathy caused by an attack of subaxial
calcium pyrophosphate dihydrate (CPPD) deposition. Moreover, there has been no report …

Object Calcium pyrophosphate dihydrate (CPPD) deposition is a rare cause of retroodontoid
mass lesions in elderly individuals. However, this condition may be severely …

BACKGROUND: Deposition of CPPD crystals occurs in the fibrous and hyaline cartilage of
the joints and intervertebral disks of the spine. Half of patients known to have …

Background:´ Crowned dens syndrome´(CDS) is a special form of calcium pyrophosphate
dihydrate deposition disease which is characterized radiologically by a halo-like or crown …

A 75-year-old male presented with progressive myelopathy due to massive retro-odontoid
deposits of calcium pyrophosphate dehydrate (CPPD) crystals. Magnetic resonance imaging …

The crowned dens syndrome (CDS), also known as periodontoid calcium pyrophosphate
dehydrate crystal deposition disease, is typified clinically by severe cervical pain, neck …