true of arachnoid cysts

Question Number 1354

the following are true of arachnoid cysts

a) they are lined by ependymal cells
b) they are located in the suprasellar cistern in 10%
c) do not cause erosion of the calvarium
d) may cause extradural hemorrhage
e) contrast injected intrathecally would be expected to pass into the cisterns

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