Leaking abdominal aortic aneurysm presenting as an inguinal mass.

Two patients with leaking abdominal aortic aneurysm (AAA) presenting as a tender inguinal mass are reported. Unusual presentations such as this often cause delays in definitive surgery which result in increased morbidity and mortality. It follows that the diagnosis of a leaking AAA should be considered in all patients with a tender pulsatile abdominal mass regardless of the presentation.