Battle's sign

In medical terminology, Battle's sign, also mastoid ecchymosis, is an indication of fracture of middle cranial fossa 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] Note well that this sign will take at least one day to appear after the initial traumatic Basilar skull fracture, similar to Raccoon eyes.

Battle's sign may be confused with a spreading hematoma from a fracture of the mandibular condyle,^[3] which is a less serious injury.

References

↑ Naumann, Hans Heinz; Jan Helms (1998). Head and neck surgery. Thieme. p. 154. ISBN 0-86577-660-1.
↑ synd/2976 at Who Named It?
↑ Banks, Peter; Brown, Andrew E. (2000). Fractures of the facial skeleton. Oxford: Wright. p. 43. ISBN 0723610347.

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

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

Mental/behavioral

Index of the central nervous system

Description	Anatomy meninges cortex association fibers commissural fibers lateral ventricles basal ganglia diencephalon mesencephalon pons cerebellum medulla spinal cord tracts Physiology neutrotransmission enzymes intermediates Development

Disease	Cerebral palsy Meningitis Demyelinating diseases Seizures and epilepsy Headache Stroke Sleep Congenital Injury Neoplasms and cancer Other paralytic syndromes ALS Symptoms and signs head and neck eponymous lesions Tests CSF

Treatment	Procedures Drugs general anesthetics analgesics addiction epilepsy cholinergics migraine Parkinson's vertigo other

Index of the peripheral nervous system

Description	Anatomy Nerves cranial trigeminal cervical brachial lumbosacral plexus somatosensory spinal autonomic Physiology reflexes proteins neurotransmitters transporters Development neurotrophins

Disease	Autonomic Congenital Injury Neoplasms and cancer Other Symptoms and signs eponymous

Treatment	Procedures Local anesthetics

Index of psychology and psychiatry

Description	Mental processes

Disorders	Mental and behavioral ADHD OCD Tourette's Mood Developmental pervasive dyslexia and specific Substance-related alcohol Emotional and behavioral Symptoms and signs eponymous Evaluation and testing

Treatment	Psychotherapy CBT Drugs depression antipsychotics anxiety dementia hypnotics and sedatives psychostimulants, ADHD and nootropics

General wound/
trauma

abrasions	Abrasion Avulsion

blisters	Blister (Blood blister Coma blister Delayed blister Edema blister Fracture blister Friction blister Sucking blister)

bruises	Bruise/Hematoma/Ecchymosis Battle's sign Raccoon eyes Black eye Subungual hematoma Cullen's sign Grey Turner's sign Retroperitoneal hemorrhage

bites	Animal bite: Insect bite Spider bite

Other

By region

Index of skin

Description	Anatomy Physiology connective tissue Development

Disease	Infections by morphology Vesiculobullous Dermatitis and eczema factitial Papulosquamous Urticaria and erythema Radiation-related Pigmentation Mucinoses Keratosis, ulcer, atrophy, and necrobiosis Vasculitis Fat Neutrophilic and eosinophilic Congenital Neoplasms and cancer nevi and melanomas epidermis dermis Symptoms and signs eponymous Terminology

Treatment	Procedures Drugs antibiotics disinfectants emollients and protectives itch psoriasis other Wound and ulcer