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Related to Battle's sign: hemotympanum
a discoloration behind the ear in the line of the posterior auricular artery, often associated with a basilar skull fracture.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Battle's signDiscolouration behind the ear in fracture of the middle part of the base of the skull. (William Henry Battle, English surgeon, 1855–1936).
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005