Macewen's sign

Macewen's sign or Macewen sign (/məˈkjuːᵻn/) is a sign used to help to diagnose hydrocephalus^[1] (accumulation of excess cerebrospinal fluid) and brain abscesses. Tapping (percussion) the skull near the junction of the frontal, temporal and parietal bones will produce cracked pot sound.Positive test is indication of separated sutures.This is due to raised intracranial tension.

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. Mcevan sign seen in alcohol intoxication is different

References

↑ http://archpedi.ama-assn.org/cgi/content/summary/16/1/13

Eponymous medical signs for nervous system

CNS

Head, general	Battle's sign Broca aphasia Kernig's sign Macewen's sign Myerson's sign Stroop test Wada test Dix-Hallpike test Hirano body

Multiple sclerosis	Dawson's fingers Lhermitte's sign Charcot's neurologic triad Uhthoff's phenomenon

Other	Romberg's test increased intracranial pressure Cushing's triad Miller Fisher test

PNS

Reflexes of extremities/
corticospinal tract

Combination	Jendrassik maneuver

Lower limb	Babinski sign Chaddock reflex Oppenheim's sign Westphal's sign

Upper limb	Hoffmann's sign

Other torso/limbs

Upper limb	Froment's sign carpal tunnel syndrome Tinel sign Phalen maneuver

Lower limb	Abadie's sign of tabes dorsalis Gowers' sign Hoover's sign Lasègue's sign Trendelenburg's sign

Torso	Beevor's sign

General	Todd's paresis Jolly's test

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