[A possible cause of snoring: bilateral tortuosity of the internal carotid artery].

Tortuosity of the internal carotid artery affecting the pharyngeal wall is a rare anomaly, and bilateral tortuosity is even rarer. A 55-year-old male patient presented with a complaint of snoring. On physical examination, there was bulging and bilateral pulsation in the oropharyngeal wall, narrowing the passage and extending to the hypopharynx. Magnetic resonance angiography showed bilateral tortuosity of the internal carotid artery, which was thought to contribute to snoring.