[Morphological study of human arachnoid granulations with reference to their classification].
Stereomicroscopic and microscopic study showed human arachnoid granulations with different morphology that we classified in simple and lobate. Simple granulations were small and completely involved by fibrous capsule that delimited a continuous subdural space from the pedicle to the apex. Lobate granulations were bigger than the simple; in the apex the fibrous capsule was thinner than in other regions, and fused with granulation periphery causing interruption of subdural space. Simple granulations might be an initial development stage; lobate granulations would represent a higher development stage, with ideal morphologic structure for absorption of the CSF.
Miranda-Neto
M H
MH
Departamentos de Ciências Morfofisiológicas, Universidade Estadual de Maringá (UEM), Maringá PR, Brasil.
Brancalhão
R M
RM
Chopard
R P
RP
Molinari
S L
SL
D000328:Adult; D001099:Arachnoid / Q000648:ultrastructure*; D002555:Cerebrospinal Fluid / Q000502:physiology; D004388:Dura Mater / Q000648:ultrastructure; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron
Estudo morfológico das granulações aracnóides humanas com referência a sua classificação.