pseud·en·ceph·a·ly noun \ˌsüd-in-ˈsef-ə-lē\
: a severe congenital malformation characterized by the presence of a vascular tumorous mass in place of the brain and the partial or complete absence of the upper part of the skull
Seen & Heard
What made you want to look up pseudencephaly? Please tell us where you read or heard it (including the quote, if possible).