Decreased cortical excitability due to a large venous angioma.
This study reports on a patient with episodes of right hand paralysis and complete sensory loss, considered to be functional because of a glove-like distribution of the sensory deficit, normal motor and sensory nerve conduction studies of median and ulnar nerve as well as normal median nerve somatosensory evoked potentials. Transcranial magnetic stimulation indicated increased threshold of the left hemisphere. Neuroimaging studies revealed a large venous angioma in the left frontal lobe.
Spilioti
Martha
M
Department of Neurology, University Hospital of Crete, Heraklion, Greece.
Ameridou
Ioanna
I
Ilias
Anestis
A
Evangeliou
Athanasios
A
Amoiridis
Georgios
G
D000293:Adolescent; D015901:Angiography, Digital Subtraction; D020787:Central Nervous System Venous Angioma / Q000150:complications* / Q000473:pathology* / Q000503:physiopathology; D002550:Cerebral Veins / Q000002:abnormalities*; D005073:Evoked Potentials, Somatosensory; D005260:Female; D006225:Hand; D006801:Humans; D008475:Median Nerve / Q000503:physiopathology; D009044:Motor Cortex / Q000098:blood supply / Q000503:physiopathology; D009431:Neural Conduction; D010243:Paralysis / Q000209:etiology* / Q000473:pathology* / Q000503:physiopathology; D013003:Somatosensory Cortex / Q000098:blood supply / Q000503:physiopathology; D050781:Transcranial Magnetic Stimulation; D014459:Ulnar Nerve / Q000503:physiopathology