In medical terminology, Battle's sign, also mastoid ecchymosis, is an indication of fracture of the base of the posterior portion of the skull, and may suggest underlying brain trauma. Battle's sign consists of bruising over the mastoid process, as a result of extravasation of blood along the path of the posterior auricular artery.^[1]. The sign is named after William Henry Battle.^[2]

Another common bruising sign of a skull injury is raccoon eyes, the purplish discoloration around the eyes following fracture of the frontal portion of the skull base.

[edit] See also

• Basilar skull fracture

[edit] References

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v • d • e Eponymous medical signs · 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 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 · Phalen maneuver Lower limb Abadie's symptom · Gowers' sign · Hoover's sign · Lasègue's sign · Trendelenburg's sign Torso Beevor's sign General Cushing's triad · Tinel sign · Todd's paresis central nervous system navs: anat/physio/dev, noncongen/congen/neoplasia, symptoms+signs/eponymous, proc peripheral nervous system navs: anat/histo/physio/dev, noncongen PNS somatic/autonomic/congen/neoplasia, symptoms+signs/eponymous, proc