Dear Editor, Cortical myoclonus is the most common form of myoclonus, mainly affecting distal upper limbs and typically occurring during voluntary action [1]; in particular, focal cortical myoclonus is frequently caused by a focal lesion affecting excitability of the sensorimotor cortex [1]. Transcranial magnetic stimulation (TMS) evaluates the excitability state of the primary motor cortex [2], representing an important tool to study focal cortical myoclonus [3]. Cortical laminar necrosis (CLN) is defined as hyperintense cortical lesion on Magnetic Resonance Imaging (MRI) T1-weighted sequences involving specific cortical laminae observed after a subacute or chronic brain damage [4]. We here present a patient with cortical action myoclonus associated with CLN.
Cortical action myoclonus due to cortical laminar necrosis / Cavallieri, Francesco; Fioravanti, Valentina; Contardi, Sara; Codeluppi, Luca; Valzania, Franco. - In: NEUROLOGICAL SCIENCES. - ISSN 1590-1874. - 35:2(2014), pp. 323-325. [10.1007/s10072-013-1547-x]
Cortical action myoclonus due to cortical laminar necrosis
Cavallieri, Francesco;Fioravanti, Valentina;Codeluppi, Luca;
2014
Abstract
Dear Editor, Cortical myoclonus is the most common form of myoclonus, mainly affecting distal upper limbs and typically occurring during voluntary action [1]; in particular, focal cortical myoclonus is frequently caused by a focal lesion affecting excitability of the sensorimotor cortex [1]. Transcranial magnetic stimulation (TMS) evaluates the excitability state of the primary motor cortex [2], representing an important tool to study focal cortical myoclonus [3]. Cortical laminar necrosis (CLN) is defined as hyperintense cortical lesion on Magnetic Resonance Imaging (MRI) T1-weighted sequences involving specific cortical laminae observed after a subacute or chronic brain damage [4]. We here present a patient with cortical action myoclonus associated with CLN.Pubblicazioni consigliate
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