| This
refers to a class of malformations involving the hindbrain (cerebellum).
There may be brain stem compression, hydrocephalus, or syringomyelia
(fluid cavity within the spinal cord). The most common symptom
is headache in the back of the skull. There may also be weakness
and trouble with the function of the cranial nerves, or nystagmus
of the eyes. |
Glossary 
