the following 3 types of posttraumatic hydrocephalus were differentiated on the basis of the clinical features : -- symmetrical communicating internal hydrocephalus with malresorption , especially after subarachnoid hemorrhage , -- communicating internal hydrocephalus alone , or in combination with external hydrocephalus resulting from atrophy , -- internal occlusive hydrocephalus after trauma .
C0020255
hydrocephalus
C0009451
communicating