Conversion disorder in adults: Terminology, diagnosis, and differential diagnosis
- Jon Stone, FRCP, PhD
Jon Stone, FRCP, PhD
- Honorary Reader in Neurology
- University of Edinburgh
- Michael Sharpe, MD
Michael Sharpe, MD
- Professor of Psychological Medicine
- University of Oxford
Conversion disorder (functional neurologic symptom disorder) is characterized by neurologic symptoms (eg, weakness, abnormal movements, or nonepileptic seizures) that are inconsistent with a neurologic disease, but nevertheless are genuine, cause distress and/or psychosocial impairment . The disorder is common in clinical settings and often has a poor prognosis [2-5].
This topic reviews the terminology, diagnosis, and differential diagnosis of conversion disorder. The epidemiology, pathogenesis, prognosis, clinical features, assessment, and treatment are discussed separately, as are specific subtypes of conversion disorder (psychogenic nonepileptic seizures and psychogenic movement disorders):
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- Diagnostic and Statistical Manual, Fifth Edition (DSM-5)
- International Classification of Diseases - 10th Revision (ICD-10)
- DIFFERENTIAL DIAGNOSIS
- Neurologic and general medical disorders
- - Multiple sclerosis
- - Myasthenia gravis
- - Movement disorders
- - Stroke
- - Spinal disorders
- - Epilepsy
- - Autoimmune limbic encephalitis
- - Stiff person syndrome
- - Laryngeal dystonia
- Psychiatric disorders
- - Somatic symptom disorder
- - Depersonalization/derealization disorder
- - Factitious disorder