Table 3.
Size proportionality of the brain stem in patients with disproportionally small cerebellum
| Each structure of brain stem (midbrain, pons, and medulla) was proportionate |
|
|---|---|
| Proportional to cerebellum | 1 |
| Proportional to cerebrum | 1 |
| Intermediate sizea | 1 |
| Pons was disproportionally small compared with midbrain and medulla |
|
| Midbrain and medulla: proportional to cerebrum; pons: proportional to cerebellum | 5 |
| Midbrain and medulla: proportional to cerebrum; pons: intermediate size | 2a |
| Midbrain and medulla: intermediate sizeb; pons: proportional to cerebellum | 1 |
Note: The table summarizes the breakdown of patients with microcephaly with disproportionally small cerebellum.
a
Siblings.
b
intermediate size: disproportionally small compared with cerebrum, disproportionally large compared with cerebellum.