State Rep. Tricia Byrnes Is Looking for the Filmmaker Who’ll Investigate FND
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Missouri State Rep. Tricia Byrnes is seeking a filmmaker to investigate Functional Neurological Disorder. She says hundreds of families report children were labeled with FND before doctors fully checked seizures and loss of mobility, and that second opinions were blocked.
Maddie Aumann: From an FND Diagnosis to Maddie’s Law
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Maddie Aumann was diagnosed with FND before genetic testing identified a rare SCN9A disorder. Her mother, Christine Aumann, describes how the FND label continued to affect Maddie’s care even after that discovery, ultimately helping inspire Maddie’s Law.
She Asked if It Was Hemiplegic Migraine. Her Neurologist Diagnosed FND
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A Reddit user describes recurrent episodes of one-sided paralysis that were diagnosed as FND. She says she raised hemiplegic migraine herself but it was rejected. Three years later, a headache specialist diagnosed chronic hemiplegic migraine, and she reports substantial improvement with migraine treatment.
Four Years of Dystonia: Meige Syndrome Misdiagnosed as FND
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A 2024 case report describes a 42-year-old woman diagnosed and treated for FND despite persistent facial, oral and cervical movements. After treatment failed, neurology diagnosed Meige syndrome. The authors explicitly describe the original FND diagnosis as a misdiagnosis.
Severe Hypoglycaemia Mistaken for Conversion Disorder
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A 2025 case report describes a 17-year-old with type 1 diabetes whose abnormal behaviour and movements were initially attributed to conversion disorder. Glucose readings of 36 and 24 mg/dL during attacks revealed severe hypoglycaemia, and the conversion diagnosis was withdrawn.
When an Unexplained Gait Became Conversion Disorder: A Huntington’s Disease Case
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A 65-year-old woman with an abnormal gait, cognitive decline and psychiatric symptoms was diagnosed with conversion disorder after inconclusive neurological investigations. Years later, genetic testing confirmed Huntington’s disease—raising a difficult question: what positive evidence had established conversion disorder in the first place?
When Suppressible Movements Were Called Functional: A Genetic PKD Case
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A 14-year-old boy was diagnosed with a functional movement disorder after presenting with suppressible involuntary movements and psychiatric comorbidity. Further investigation identified monogenic paroxysmal kinesigenic dyskinesia (PKD), while the authors noted that specific positive features supporting the original functional diagnosis had been absent.
When Stress-Sensitive Stiffness Was Diagnosed as Conversion Disorder
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A 52-year-old woman developed progressive leg stiffness, spasms and severe gait impairment that worsened with stress and fatigue. After multiple evaluations, she was diagnosed with conversion disorder. A year later, markedly elevated anti-GAD antibodies and characteristic EMG abnormalities supported stiff-person syndrome, with significant improvement following IVIG.
When Conversion Disorder Was Actually a Rare Prion Disease
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A woman with tremor, speech problems and slowed movements was diagnosed with conversion disorder after early neurological investigations were unrevealing. As her condition progressively deteriorated, genetic testing ultimately confirmed Gerstmann–Sträussler–Scheinker disease caused by a rare PRNP mutation.
FND Diagnosis Followed by Myasthenia Gravis and Respiratory Failure
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A Reddit user questioned their FND diagnosis while being investigated for myasthenia gravis. Weeks later, they reported respiratory failure requiring intubation, an MG diagnosis and treatment with IVIG and plasma exchange. A later FND specialist assessment reportedly found no FND symptoms.
When “Functional” Signs Mislead: GSS Misdiagnosed as Conversion Disorder
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A man whose variable, distractible and inconsistent neurological findings contributed to a diagnosis of conversion disorder continued to deteriorate for years. After his death, neuropathology and genetic testing confirmed Gerstmann-Sträussler-Scheinker syndrome, showing how genuine clinical observations can support the wrong diagnostic interpretation.
A Case of Sporadic Creutzfeldt-Jakob Disease Presenting as Conversion Disorder
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A 64-year-old woman was diagnosed with a functional neurological movement disorder after clinicians observed distractibility, variability and entrainment. Within weeks, worsening symptoms and newly abnormal EEG and MRI findings reopened the investigation, and a brain biopsy confirmed sporadic Creutzfeldt-Jakob disease.
