Chiari Malformation and syringomyelia are related conditions. In the former, the cerebellar tonsils are not in their proper location. Instead, they hang down into the spinal column through the opening at the base of the skull. This dislocation causes symptoms such as headaches and problems with movement.
In many cases, people with Arnold Chiari Type 1 malformation also
develop a fluid filled sac called a syrinx. The condition where someone
has this syrinx is known as syringomyelia.
Doctors can detect this fluid filled sac by using diagnostic imaging. The pressure that builds up in the syrinx can damage the spinal cord over time.
cases of Chiari Malformation are more severe than others in terms of
the dislocation of the cerebellar tonsils and this is why some people
can manage the condition with painkillers, while others have to do
surgery. Doctors may also opt to release the fluid associated with the
syringomyelia by using drainage tubes. If necessary, your physician may
also recommend a decompression operation.