[Tension pneumocephalus--report of four cases].
D000368:Aged; D003399:Craniotomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011007:Pneumocephalus / Q000000981:diagnostic imaging / Q000601:surgery; D011183:Postoperative Complications / Q000000981:diagnostic imaging / Q000601:surgery; D011312:Pressure; D014057:Tomography, X-Ray Computed