Macewen sign

Macewen sign
A sign to detect hydrocephalus and brain abscess. Percussion (tapping) on the skull at a particular spot (near the junction of the frontal, temporal and parietal bones) yields an unusually resonant sound in the presence of hydrocephalus or a brain abscess. Named for Sir William Macewen (1848-1924), a surgeon in Glascow, Scotland who also described Macewen’s operation for inguinal hernia.

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on percussion of the skull behind the junction of the frontal, temporal, and parietal bones, there is a more resonant note than normal in internal hydrocephalus and cerebral abscess. Called also cracked-pot sound and cranial cracked-pot sound.

Medical dictionary. 2011.

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  • Macewen's sign — is a sign used to help to diagnose hydrocephalus (accumulation of excess cerebrospinal fluid) and brain abscesses. Tapping (percussion) the skull near the junction of the frontal, temporal and parietal bones will produce a stronger resonant sound …   Wikipedia

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  • Sign, Macewen — A sign to detect hydrocephalus and brain abscess. Percussion (tapping) on the skull at a particular spot (near the junction of the frontal, temporal and parietal bones) yields an unusually resonant sound in the presence of hydrocephalus or a… …   Medical dictionary

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