A 75 year old female with a past history of pulmonary embolism was admitted with dyspnoea.
Computed tomography angiography unexpectedly revealed a significantly narrowed and
completely occluded abdominal aorta at the infrarenal level. She did not have any
intestinal or lower limb problems, but she had had resistant hypertension for 40 years.
Bilateral femoral, popliteal, and pedal pulses were palpable. The superior mesenteric
artery (violet arrow), the arc of Riolan (white arrows), and the inferior mesenteric
artery (red arrow) were dilated, providing adequate blood flow to the abdomen, pelvis,
and lower limbs.