title: Pneumoencephalographic radio-anatomical variants in the posterior cranial fossa.
mesh_terms: D002531:Cerebellum / Q000000981:diagnostic imaging*; D003388:Cranial Fossa, Posterior / Q000033:anatomy & histology / Q000000981:diagnostic imaging; D014644:Genetic Variation; D006801:Humans; D011011:Pneumoencephalography; D012886:Skull / Q000000981:diagnostic imaging*; D014056:Tomography, X-Ray