pneumocephalus

pneumocephalus
Presence of air or gas within the cranial cavity. [G. pneuma, air, + kephale, head]

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pneu·mo·ceph·a·lus -'sef-ə-ləs n, pl -li -.lī the presence of air within the cranial cavity

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n.
the presence of air within the skull, usually resulting from a fracture passing through one of the air sinuses. There may be a leak of cerebrospinal fluid at the site of the fracture, manifested as a watery discharge from the nose. Pneumocephalus can be detected by plain X-rays of the skull, which show air and a fluid level inside a cavity, or by CT and MRI scanning.

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pneu·mo·ceph·a·lus (noo″mo-sefґə-ləs) [pneumo- + -cephalus] the presence of air in the cranial cavity; called also intracranial pneumatocele, pneumatocephalus, pneumocrania, and pneumoencephalocele.

Medical dictionary. 2011.

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