Abstract
Abdominal pain is a common chief complaint and requires a broad differential diagnosis, particularly in the elderly. Certain diagnoses come to mind immediately when evaluating for causes of abdominal pain, but gallstone ileus is not always among those first considered. However, given the high mortality rate it carries, gallstone ileus should be considered in patients with obstructive symptoms, particularly those over the age of 65. The following discussion outlines a case of gallstone ileus and illustrates the classic radiographic finding, known as Rigler's triad, associated with this disease process. The following core competencies are addressed in this article: Medical knowledge, patient care, practice-based learning and improvement, and systems-based practice.
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