Ocular pseudomyasthenia: report of a case with a pineal region tumor.
A case presenting with clinical features of ocular myasthenia and a false-positive edrophonium test is reported. Brain CT and MRI scan revealed a pineal region tumor histologically verified as germinoma. We recommend evaluating patients with clinical features of myasthenia gravis (MG) confined to the ocular muscles for intracranial mass lesions.
Fierro
B
B
Istituto di Neuropsichiatria dell'Università di Palermo.
Croce
G
G
Filosto
L
L
Carbone
N
N
Lupo
I
I
D000328:Adult; D001932:Brain Neoplasms / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D004172:Diplopia / Q000209:etiology*; D004407:Dysgerminoma / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D005074:Evoked Potentials, Visual / Q000502:physiology; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009157:Myasthenia Gravis / Q000209:etiology / Q000473:pathology*; D009801:Oculomotor Muscles; D010870:Pineal Gland; D011680:Pupil / Q000502:physiology; D014057:Tomography, X-Ray Computed; D014794:Visual Fields / Q000502:physiology