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Functional Motor Disorders Mimicking Symptoms Upon Resolution of Cerebrovascular Disease
Author(s) -
Paio Fabio,
Antelmi Elena,
Conti Enrico,
Di Vico Ilaria,
Tinazzi Michele
Publication year - 2020
Publication title -
movement disorders clinical practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.754
H-Index - 18
ISSN - 2330-1619
DOI - 10.1002/mdc3.12972
Subject(s) - motor symptoms , brainstem , medicine , lesion , neuroscience , differential diagnosis , arteriovenous malformation , disease , movement disorders , physical medicine and rehabilitation , psychology , radiology , pathology , parkinson's disease
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.