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Subsets of functional neurological disorders include functional neurologic symptom disorder (FNsD) (conversion disorder), functional movement disorder, and functional seizures. The diagnosis is made based on positive signs and symptoms in the history and examination during consultation of a neurologist.
The diagnostic criteria for functional neurologic symptom disorder, as set out in DSM-5, are: The patient has at least one symptom of altered voluntary motor or sensory function. Clinical findings provide evidence of incompatibility between the symptom and recognised neurological or medical conditions.
Somatoform disorders are now called somatic symptom and related disorders. Patients that present with chronic pain can now be diagnosed with the mental illness somatic symptom disorder with predominant pain; or psychological factors that affect other medical conditions; or with an adjustment disorder. [11] [27] [28] [29] [30]
Feeling this would indicate an organic cause of the paresis. If the examiner does not feel the "normal" leg's heel pushing down as the patient flexes the hip of the "weak" limb, then this suggests functional weakness (sometimes called "conversion disorder"), i.e. that effort is not being transmitted to either leg. [citation needed]
The symptom or deficit is not better explained by another medical or mental disorder. The symptom or deficit causes clinically significant distress or impairment in social, occupational, or other important areas of functioning or warrants medical evaluation. Additionally, the specific symptom type must be reported "with attacks or seizures". [15]
Cases involving these symptoms are classified as functional disorders ("functional" in this context is usually contrasted with the old term "organic disease"). For example, in functional neurologic disorder (FND), those affected present with various neurological symptoms such as functional seizures, numbness, paresthesia, and weakness, among ...
Functional weakness is weakness of an arm or leg without evidence of damage or a disease of the nervous system. Patients with functional weakness experience symptoms of limb weakness which can be disabling and frightening such as problems walking or a 'heaviness' down one side, dropping things or a feeling that a limb just doesn't feel normal or 'part of them'.
This is a list of major and frequently observed neurological disorders (e.g., Alzheimer's disease), symptoms (e.g., back pain), signs (e.g., aphasia) and syndromes (e.g., Aicardi syndrome). There is disagreement over the definitions and criteria used to delineate various disorders and whether some of these conditions should be classified as ...