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Boas' sign
Boas' or Boas's sign is hyperaesthesia (increased or altered sensitivity) below the right scapula can be a symptom in acute cholecystitis (inflammation of the gallbladder). It is one of many symptoms a medical provider may look for during an abdominal examination.
Originally this sign referred to point tenderness in the region to the right of the 10th to 12th thoracic vertebrae. It is less than 7% sensitive.〔http://www.bcm.edu/gastro/DDC/grandrounds/UT/9-14-06/09-DISC.HTM〕〔Gunn A, Keddie N. Some clinical observations on patients with gallstones. Lancet 1972;2:230-241〕
Its namesake is Ismar Isidor Boas (1858-1938), German physician and first licensed GI specialist in his country.
Boas' sign can also indicate stomach and duodenal disease. When the transverse processes of thoracic vertebrae T10-T12 are pressed or effleuraged with the bottom of the hand, pain can appear at left of spinous processes (in stomach's lesser curvature ulcer) or at right (in pyloric or duodenal ulcer).
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Boas' sign」の詳細全文を読む
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