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- Q2100002 subject Q6584894.
- Q2100002 abstract "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). The sign was first described by a team of Japanese neurosurgeons.Pneumocephalus has also been shown to follow neurosurgical procedures such as deep brain stimulation, where while seemingly innocuous to the patient, may cause brain shift and subsequent stereotactic inaccuracy. Efforts are made by neurosurgeons to reduce pneumocephalus volume during surgery, and thus, subsequent brain shift.".
- Q2100002 thumbnail Wound-003.jpg?width=300.
- Q2100002 wikiPageWikiLink Q1394389.
- Q2100002 wikiPageWikiLink Q17.
- Q2100002 wikiPageWikiLink Q1710207.
- Q2100002 wikiPageWikiLink Q188449.
- Q2100002 wikiPageWikiLink Q189553.
- Q2100002 wikiPageWikiLink Q203601.
- Q2100002 wikiPageWikiLink Q2920572.
- Q2100002 wikiPageWikiLink Q32566.
- Q2100002 wikiPageWikiLink Q3632931.
- Q2100002 wikiPageWikiLink Q39231.
- Q2100002 wikiPageWikiLink Q6584894.
- Q2100002 wikiPageWikiLink Q9604.
- Q2100002 comment "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.".
- Q2100002 label "Pneumocephalus".
- Q2100002 depiction Wound-003.jpg.