| pyocephalus | A purulent effusion within the cranium. Synonym: pyencephalus. Origin: pyo-+ G. Kephale, head (05 Mar 2000) |
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| circumscribed pyocephalus | Abscess of the brain. (05 Mar 2000) |
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| internal pyocephalus | Intraventricular suppuration. (05 Mar 2000) |
| external pyocephalus | Meningeal suppuration. (05 Mar 2000) |