BACKGROUND: Functional motor disorders encompass a variety of manifestations characterized by abnormal movements that are clinically incongruent with those known to be caused by neurological diseases. CASES: We report 2 cases in which functional motor disorders developed after complete recovery of motor symptoms originating from underlying vascular brain lesions. The first case describes a young woman who developed a motor and sensory hemisyndrome after surgical removal of a postrolandic cavernoma. The second describes a 16-year-old girl who presented with a mixed component tremor after ventricular derivation and endovascular embolization for rupture of a brainstem arteriovenous malformation. CONCLUSION: Motor symptoms and signs attributed to an underlying lesion may trigger "pure" functional motor disorders. In such cases, the differential diagnosis may be even more challenging. However, diagnosis of a functional rather than a defined structural disorder can be achieved by a "positive diagnostic process," considering the findings of internal inconsistency and incongruity.
BACKGROUND: Functional motor disorders encompass a variety of manifestations characterized by abnormal movements that are clinically incongruent with those known to be caused by neurological diseases. CASES: We report 2 cases in which functional motor disorders developed after complete recovery of motor symptoms originating from underlying vascular brain lesions. The first case describes a young woman who developed a motor and sensory hemisyndrome after surgical removal of a postrolandic cavernoma. The second describes a 16-year-old girl who presented with a mixed component tremor after ventricular derivation and endovascular embolization for rupture of a brainstem arteriovenous malformation. CONCLUSION: Motor symptoms and signs attributed to an underlying lesion may trigger "pure" functional motor disorders. In such cases, the differential diagnosis may be even more challenging. However, diagnosis of a functional rather than a defined structural disorder can be achieved by a "positive diagnostic process," considering the findings of internal inconsistency and incongruity.
Authors: Isabel Pareés; Tabish A Saifee; Panagiotis Kassavetis; Maja Kojovic; Ignacio Rubio-Agusti; John C Rothwell; Kailash P Bhatia; Mark J Edwards Journal: Brain Date: 2011-11-10 Impact factor: 13.501
Authors: Gabriela B Raina; Maria G Cersosimo; Silvia S Folgar; Juan C Giugni; Cristian Calandra; Juan P Paviolo; Veronica A Tkachuk; Carlos Zuñiga Ramirez; Andrea L Tschopp; Daniela S Calvo; Luis A Pellene; Marcela C Uribe Roca; Miriam Velez; Rolando J Giannaula; Manuel M Fernandez Pardal; Federico E Micheli Journal: Neurology Date: 2016-02-10 Impact factor: 9.910