We report a case of internal carotid arterial damage following blunt neck trauma. This rare mechanism of injury demands a high index of suspicion to enable prompt specialist management.

A 22-year-old man presented to hospital after sustaining blunt neck trauma. Rapid onset of stridor necessitated an emergency tracheostomy. Computed tomography angiography demonstrated a tear of the right internal carotid artery, which was repaired surgically.

Blunt carotid vessel injury, although rare, has a high mortality rate. Mechanisms of injury include hyperextension and contralateral neck rotation, a direct blow to the vessel, and laceration by adjacent bony structures. The ‘gold standard’ investigation for suspected blunt carotid vessel injury is catheter angiography, although this carries a small risk of stroke. Computed tomography angiography is a less invasive, alternative investigation which has almost equivalent accuracy. The extent of damage to the vessel wall will dictate treatment. In our literature review, we discuss the presentation, investigation and different treatment modalities available.

This case highlights an unusual mechanism of carotid artery injury, with a delayed, potentially fatal presentation. Such injury demands a high index of suspicion, and confirmation with specific investigations. Management is hazardous and requires experienced personnel in all aspects of care.

Deformities of the carotid artery are rare. Tortuosity, kinking and coiling of the internal carotid artery may be observed with advancing age. A tortuous internal carotid artery may cause an abnormal sensation in the throat. In the early twentieth century, there were several reported cases of fatal haemorrhage during pharyngeal surgical procedures, because this condition went undetected.

We present two cases of tortuosity of the right internal carotid artery. Both women complained of abnormal throat sensations. Endoscopic studies and radiological examinations revealed tortuous right internal carotid arteries presenting as pulsatile masses. A literature review revealed that, in most reported cases, this deformity occurred on the right side. We believe that the defect and its right-sided predominance can be attributed to anatomical influences and factors affecting blood pressure.

In most reported cases of tortuous internal carotid artery, the defect occurred on the right side and patients complained of an abnormal sensation in the throat. This information is useful in the diagnosis of this condition. It is important for otolaryngologists to recognise this anomaly, because fatal haemorrhage can occur in patients with this condition during surgical procedures on the pharynx.