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The vagus nerve lies in the posterior angle formed between the
internal jugular vein and the carotid artery (Giovagnorio and
Martinoli, 2001). Location of the vagus nerve in the anterior
angle is rare (0.7% of healthy subjects, Giovagnorio and Martinoli,
2001). In some subjects the vagus nerve will cross in front of
the carotid artery (Video 612
KB).
References
Giovagnorio F, Martinoli C. Sonography of the cervical vagus
nerve: normal appearance and abnormal findings. AJR Am J Roentgenol.
2001 Mar;176(3):745-9. PMID: 11222217
Knappertz VA, Tegeler CH, Hardin SJ, McKinney WM. Vagus nerve
imaging with ultrasound: anatomic and in vivo validation. Otolaryngol
Head Neck Surg. 1998 Jan;118(1):82-5. PMID: 9450833
Solbiati L, De Pra L, Ierace T, Bellotti E, Derchi LE. High-resolution
sonography of the recurrent laryngeal nerve: anatomic and pathologic
considerations. AJR Am J Roentgenol. 1985 Nov;145(5):989-93.
PMID: 3901711
Silvestri E, Martinoli C, Derchi LE, Bertolotto M, Chiaramondia
M, Rosenberg I. Echotexture of peripheral nerves: correlation
between US and histologic findings and criteria to differentiate
tendons. Radiology. 1995 Oct;197(1):291-6. PMID: 7568840
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