An overlooked diagnosis: stump appendicitis. Case report.

Stump appendicitis (SA) is a very rare complication after appendectomy. Although the clinical features are the same as appendicitis, the rate of missed or delayed diagnosis is high due to a history of previous appendectomy. This condition can potentially lead to serious complications such as perforation or sepsis, and even mortality. It should always be included in the differential diagnosis in patients presenting with acute abdomen with a history of appendectomy. As imaging plays an important role in the diagnosis of this condition, it is vital that radiologists are aware of this rare but serious condition. In this case report, we report two cases who underwent appendectomy and were subsequently diagnosed with stump appendicitis.