Intradiploic arachnoid cyst of the posterior fossa.
Turgut
M
M
D016080:Arachnoid Cysts / Q000209:etiology*; D002648:Child; D002675:Child, Preschool; D003388:Cranial Fossa, Posterior / Q000293:injuries*; D006801:Humans; D009777:Occipital Bone / Q000293:injuries