History of appendectomy? An atypical case of recurrent abdominal pain.

Acute appendicitis is a common condition emergency physician encounter during pediatric emergency visits. With a reported incidence of 1 in 50,000 appendectomies, stump appendicitis, an acute inflammation of the residual appendicular tissue, is a rare post-operative complication. The diagnosis of stump appendicitis is time-critical to prevent associated morbidities of abscess formation, perforation and sepsis. Another atypical presentation of appendicitis includes recurrent appendicitis, which is recognized as one or more previous episodes of similar clinical presentation as acute appendicitis, but symptoms subside within 24 to 48 hours. Intervals between attacks may vary from weeks to years during which the patient may be asymptomatic. Although recurrent appendicitis is rare, emergency physicians should be aware of this possibility and to not assume that previous appendectomy precludes recurrent appendicitis. This case highlights the importance of considering such unusual condition in a patient presenting with recurrent right-sided abdominal pain.