Osteitis of the base of the skull]

The base of the skull and calvarium may be the site of osteitis secondary to haematogenous or loco-regional dissemination of a nasal sinus or postoperative, external ear or middle ear infection. Although most of the complications of osteitis are eradicated by antibiotics, some persist and are still serious due to the delay in the diagnosis extensive necrosis due to the bacteria and the clinical context.