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The absence of a pathognomonic sign does not rule out the disease. Labelling a sign or symptom "pathognomonic" represents a marked intensification of a "diagnostic" sign or symptom. The word is an adjective of Greek origin derived from πάθος pathos 'disease' and γνώμων gnomon 'indicator' (from γιγνώσκω gignosko 'I know, I ...
In studies evaluating different physical ailments, 41.5% of people with semantic dementia, 11.2% of subjects with Alzheimer's disease, [14] 25% of female patients suffering from non-HIV lipodystrophy, [15] and 18.5% of patients with congestive heart failure [16] fulfilled somatic symptom disorder criteria. 25.6% of fibromyalgia patients met the ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 3 February 2025. The following is a list of mental disorders as defined at any point by the Diagnostic and Statistical Manual of Mental Disorders (DSM) or the International Classification of Diseases (ICD). A mental disorder, also known as a mental illness, mental health condition, or psychiatric ...
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 ...
Doss porphyria/ALA dehydratase deficiency/Plumboporphyria (the disease is known by multiple names) DPT Diphtheria, pertussis, tetanus: DRSP disease Drug-resistant Streptococcus pneumoniae disease DS Down syndrome: DSPS Delayed sleep phase syndrome: DTs Delirium tremens: DVD Developmental verbal dyspraxia: DVT Deep vein thrombosis
Signs and symptoms are also applied to physiological states outside the context of disease, as for example when referring to the signs and symptoms of pregnancy, or the symptoms of dehydration. Sometimes a disease may be present without showing any signs or symptoms when it is known as being asymptomatic. [13]
Further complicating the diagnosis is the fact that many patients with Parkinson's disease will have major depressive disorder, which may be the underlying cause of catatonia. Parkinson's disease can be distinguished from catatonia by a positive response to levodopa. Catatonia, on the other hand, will show a positive response to benzodiazepines.
These are referred to as "eponymous syndromes". In some cases, diseases are named after the patient who initially presents with symptoms, [17] or their home town (Stockholm syndrome). There have been isolated cases of patients being eager to have their syndromes named after them, while their physicians are hesitant. [18]