Macewen's sign
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'''Macewen's sign''' is a sign used to help to diagnose [[hydrocephalus]] (accumulation of excess [[cerebrospinal fluid]]) and brain [[abscess]]es. Tapping ([[percussion, medical|percussion]]) the skull near the junction of the [[frontal bone|frontal]], [[temporal bone|temporal]] and [[parietal bone|parietal]] bones will produce a stronger [[resonant]] sound when either hydrocephalus or a brain abscess are present.
The sign was discovered and described by Sir [[William Macewen]] (1848-1924), a surgeon and professor of the [[University of Glasgow]], [[Scotland]] who also described [[Macewen's operation]] for [[inguinal hernia]].
{{med-sign-stub}}
{{Eponymous medical signs for nervous system}}
[[Category:Neurology]]
[[pl:Objaw Macewena]]