title: Pneumocephalus after ventriculoatrial shunt.
abstract: Pneumocephalus developing after a ventriculoatrial shunting procedure is described. This was found to be caused by a defect in the posterior wall of the frontal sinus, possibly secondary to chronically increased intracranial pressure. A review of the pertinent literature revealed only two other similar cases.
mesh_terms: D000328:Adult; D002535:Cerebral Aqueduct; D002557:Cerebrospinal Fluid Shunts / Q000009:adverse effects*; D003251:Constriction, Pathologic; D005260:Female; D005626:Frontal Sinus; D006801:Humans; D006849:Hydrocephalus / Q000209:etiology / Q000601:surgery; D007427:Intracranial Pressure; D011007:Pneumocephalus / Q000000981:diagnostic imaging / Q000209:etiology*; D014057:Tomography, X-Ray Computed