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Axial section at the level of the medulla, depicted schematically on the left, with a corresponding magnetic resonance image on the right. Note that in Figs.
446-10,446-11,446-12,446-13, and 446-14, all drawings are oriented with the dorsal surface at the bottom, matching the orientation of the brainstem that is
commonly seen in all modern neuroimaging studies. Approximate regions involved in medial and lateral medullary stroke syndromes are shown.
Signs and symptoms: Structures involved
Medial medullary syndrome (occlusion of vertebral artery or of branch of vertebral or lower basilar artery)
Source: Diseases of the Central Nervous System, Harrison's Principles of Internal Medicine, 19e
On side of lesion
Citation:
Kasper
D, Faucihalf
A, the
Hauser
S, Longo
D, Jameson
J, Loscalzo J. Harrison's Principles of Internal Medicine, 19e; 2015 Available at:
Paralysis with
atrophy
of one-half
tongue:
Ipsilateral
twelfth nerve
http://mhmedical.com/
Accessed:
May
11,
2017
On side opposite lesion
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Paralysis of arm and leg, sparing face; impaired tactile and proprioceptive sense over one-half the body: Contralateral pyramidal tract and medial
lemniscus