A 70-year-old man presents to the clinic with worsening loss of sensation on the right foot for 6 months. His medical history includes type 2 diabetes mellitus and hypertension which are treated with metformin, atorvastatin, and lisinopril. He has a history of smoking 1 pack of cigarettes per day for 40 years. Vital signs include blood pressure 145/83 mmHg and pulse of 87 beats/minute. Random blood sugar is 187 mg/dL. Physical examination shows that the lower back, hips and knees have full range of movement. Peripheral pulses in the upper and lower limbs are palpable and 2+. There is motor weakness in right foot plantar flexion and decreased plantar sensation on the right. Further investigation with doppler ultrasound shows an arterial aneurysm behind the right knee, and it is concluded that it causes compression of the tibial nerve.
Which of the following is the correct order of arterial vessels feeding this aneurysm?
- A) External iliac artery, common femoral artery, obturator artery, popliteal artery
- B) External iliac artery, common femoral artery, superficial femoral artery, popliteal artery
- C) Internal iliac artery, common femoral artery, deep femoral artery, popliteal artery
- D) Internal iliac artery, common femoral artery, popliteal artery
- E) Superior mesenteric artery, external iliac artery, femoral artery, popliteal artery
Dr. Ted O'Connell