Match the following specific clinical presentations and physical exam findings with their most likely cardiothoracic or vascular surgical diagnosis.
- Upper extremity claudication and transient ataxia precipitated by strenuous arm exercise, accompanied by a blood pressure differential of >15 mm Hg between the arms.Subclavian steal syndrome
- Progressive bilateral buttock, hip, and thigh claudication, erectile dysfunction, and absent femoral pulses in a male patient with a significant smoking history.Aortoiliac occlusive disease (Leriche syndrome)
- Sudden onset of severe unilateral leg pain, pallor, and pulselessness with no prior history of intermittent claudication, occurring in the setting of atrial fibrillation.Acute limb ischemia due to arterial embolism
- Numbness and tingling in the ulnar nerve distribution with a diminished radial pulse when the patient extends the neck and turns the head toward the ipsilateral side.Thoracic outlet syndrome
Answer
The presentations map to classic vascular pathologies: vertebrobasilar symptoms with arm exercise indicates Subclavian steal syndrome; the triad of buttock claudication, impotence, and absent femoral pulses indicates Leriche syndrome; sudden severe leg ischemia without prior claudication points to an Arterial embolism; and positional neurovascular compression with a positive Adson test indicates Thoracic outlet syndrome.
Each clinical vignette provides highly specific, pathognomonic physical exam and historical findings that uniquely map to one major vascular condition. Recognizing these classic constellations (such as the Leriche triad or the Adson maneuver) is crucial for accurate surgical triage and management.
Step-by-Step Solution
Key Concept
Classic presentations of major vascular surgery syndromes