Aaron sign is referred pain felt in the epigastrium upon continuous firm pressure over McBurney’s point, indicative of chronic appendicitis.
Initially described in 1913 by Charles Dettie Aaron (1866-1951), an American gastroenterologist. Aaron published his findings ‘to assist others in coming to some conclusion as to its value in the diagnosis of chronic appendicitis (appendicitis larvata)‘.
I have been able to induce a referred pain or distress in the epigastrium, left hypochondrium, umbilical, left inguinal or precordial region by a continuous firm pressure over the appendix. I have found this test exceedingly valuable in deciding when and when not to recommend operation for chronic appendicitisAaron 1913
- Aaron CD. Diseases of the stomach with special reference to treatment. 1911
- Aaron CD. A sign indicative of chronic appendicitis. JAMA. 1913; 60(5): 350-351. [Aaron sign]
- Aaron CD. Diseases of the Digestive Organs with special reference to their diagnosis and treatment. 1918
- Eponymythology: Appendicitis eponymous signs. LITFL
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