IDIOPATHIC

'Idiopathic' is an adjective used primarily in medicine meaning ''arising spontaneously'' or ''from an obscure or unknown cause''. The combination of Greek roots means approximately "a disease of its own kind."
It is technically a term from nosology, the classification of disease. For most medical conditions, one or more causes are somewhat understood, but in a certain percentage of people with the condition, the cause may not be readily apparent or characterized. In these cases, the origin of the condition is said to be "idiopathic."
With some medical conditions, the medical community cannot establish a root cause for a large percentage of all cases (''e.g.'' Focal segmental glomerulosclerosis, the majority of which are idiopathic); Focal and segmental glomerulosclerosis, Daskalakis N, Winn M, , , Cell Mol Life Sci, 2006 with other conditions, however, idiopathic cases account for a small percentage (''e.g.'', pulmonary fibrosis). Medical Encyclopedia: Idiopathic pulmonary fibrosis As medical and scientific advances are made with relation to a particular condition or disease, more root causes are discovered, and the percentage of cases designated as ''idiopathic'' shrinks.
In his book ''The Human Body,'' Isaac Asimov noted a comment about the term "idiopathic" made in the 20th edition of ''Stedman's Medical Dictionary'': "A high-flown term to conceal ignorance."

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See also

★ Diagnosis of exclusion

★ Idiosyncrasy

★ Idiosyncratic drug reactions

References

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