Cerebellar anatomy as applied to cerebellar microsurgical resections.
OBJECTIVE
To define the anatomy of dentate nucleus and cerebellar peduncles, demonstrating the surgical application of anatomic landmarks in cerebellar resections.


METHODS
Twenty cerebellar hemispheres were studied.


RESULTS
The majority of dentate nucleus and cerebellar peduncles had demonstrated constant relationship to other cerebellar structures, which provided landmarks for surgical approaching. The lateral border is separated from the midline by 19.5 mm in both hemispheres. The posterior border of the cortex is separated 23.3 mm from the posterior segment of the dentate nucleus; the lateral one is separated 26 mm from the lateral border of the nucleus; and the posterior segment of the dentate nucleus is separated 25.4 mm from the posterolateral angle formed by the junction of lateral and posterior borders of cerebellar hemisphere.


CONCLUSIONS
Microsurgical anatomy has provided important landmarks that could be applied to cerebellar surgical resections.
Microanatomy Laboratory, Hospital Beneficência Portuguesa of São Paulo, São Paulo, SP, Brazil.
Alejandro
A
Ramos
Feres
F
Chaddad-Neto
Hugo Leonardo
HL
Dória-Netto
José Maria de
JM
Campos-Filho
Evandro
E
Oliveira
D002102:Cadaver; D002529:Cerebellar Nuclei / Q000033:anatomy & histology / Q000601:surgery; D002531:Cerebellum / Q000033:anatomy & histology* / Q000601:surgery*; D002540:Cerebral Cortex / Q000033:anatomy & histology / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D008488:Medical Illustration; D008866:Microsurgery