Boas sign

Last revised by Dr Daniel J Bell on 04 Aug 2021

Boas sign is a clinical sign that is defined as hyperesthesia felt by the patient to light touch in the right lower scapular region or the right upper quadrant of the abdomen. It is classically seen in patients with acute cholecystitis.

History and etymology

Ismar Isidor Boas (1858–1938), was one of the German, greatest legendary gastroenterologists who described Boas sign in his paper 1-5. In the year 1895, he launched the world's first gastroenterology journal "Archiv für Verdauungs-Krankheiten". He also founded the German gastroenterology society in 1920 2-6.

See also

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