Pneumocephalus
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High Quality Content by WIKIPEDIA articles! Pneumocephalus is the presence of air or gas within the cranial cavity. It is usually associated with disruption of the skull: after head and facial trauma, tumors of the skull base, after neurosurgery or otorhinolaryngology, and rarely, spontaneously. Pneumocephalus can occur in scuba diving, but is very rare in this context. If there is a valve mechanism which allows air to enter the skull but prevents it from escaping, a tension pneumocephalus can occur (similar to what can happen in a tension pneumothorax). CT scans of patients with a tension pneumocephalus typically show air that compresses the frontal lobes of the brain, which results in a tented appearance of the brain in the skull known as the Mount Fuji sign. The name is derived from the resemblance of the brain to Mount Fuji in Japan, a volcano known for its symmetrical cone. In typical cases, there is a symmetrical depression near the midline (such as the crater of a volcano), due to intact bridging veins. Its occurrence seems to be limited to tension pneumocephalus (not occurring in pneumocephalus without tension).
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GarantieWeitere Informationen
- Allgemeine Informationen
- Editor Lambert M. Surhone, Mariam T. Tennoe, Susan F. Henssonow
- Titel Pneumocephalus
- EAN 9786131957963
- Genre Medizin
- Anzahl Seiten 84
- Herausgeber Betascript Publishing
- GTIN 09786131957963
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