Neuroimaging abnormalities with hypoglossal nerve palsies.
Seven patients with acute or chronic unilateral hypoglossal nerve lesions were evaluated by magnetic resonance imaging and computed tomography. In patients with acute to subacute tongue paralysis, the base of the ipsilateral side of the tongue appeared expanded and showed increased signal intensity on T2-weighted images. This appearance was suggestive of an infiltrative mass lesion within the tongue. These radiographic findings are due to the pathophysiological process of nerve injury and muscle denervation.
Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.
T T
TT
Batchelor
G S
GS
Krol
L M
LM
DeAngelis
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D003952:Diagnostic Imaging; D006801:Humans; D007002:Hypoglossal Nerve / Q000000981:diagnostic imaging / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D010243:Paralysis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D010523:Peripheral Nervous System Diseases / Q000175:diagnosis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014059:Tongue / Q000294:innervation; D014060:Tongue Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging