Isolated hypoglossal nerve palsy due to internal carotid artery dissection

(A) The patient's tongue deviated to the left.
(B) T1-weighted MRI demonstrates narrowing of the lumen and intramural hematoma in the left internal carotid artery.
(C) True fast MRI with steady-state precession reveals the anatomic juxtaposition of the hypoglossal nerve (arrowhead) and the dissected internal carotid artery (arrow).

Reproduced with permission from: Okunomiya T, Kageyama T, Suenaga T. Teaching NeuroImages: Isolated hypoglossal nerve palsy due to internal carotid artery dissection. Neurology 2012; 79:e37. Copyright © 2012 Lippincott Williams & Wilkins.

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Isolated hypoglossal nerve palsy due to internal carotid artery dissection

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