AskDefine | Define pathognomonic

User Contributed Dictionary

English

Adjective

pathognomonic
  1. Beyond any doubt diagnostic for a particular disease.
    A tetrade of rash, arthralgia, abdominal pain and kidney disease in a child is pathognomonic for Henoch-Schönlein purpura.

Extensive Definition

Pathognomonic (often misspelled as pathognomic and sometimes as pathomnemonic) is an adjective of Greek origin (παθογνωμονικό [σύμπτωμα]), often used in medicine, which means diagnostic for a particular disease. A pathognomonic sign is a particular sign whose presence means, beyond any doubt, that a particular disease is present. It is derived from the Greek páthos (πάθος, disease) and gnōmon (γνώμον, "judge"). Labelling a sign or symptom "pathognomonic" represents a marked intensification of a "diagnostic" sign or symptom.
While some findings may be classic, typical or highly suggestive in a certain condition, they may not occur uniquely in this condition and therefore may not directly imply a specific diagnosis. A pathognomonic finding on the other hand allows immediate diagnosing, since there are no other conditions in the differential diagnosis. A pathognomonic sign or symptom can sometimes be absent in a certain disease, since the term only implies that when it is present, the doctor instantly knows the patient's illness.
Singular pathognomonic signs are relatively uncommon. Examples of pathognomonic findings include Koplik's spots inside the mouth in measles, the palmar xanthomata seen on the hands of people suffering from hyperlipoproteinemia, or a tetrad of rash, arthralgia, abdominal pain and kidney disease in a child with Henoch-Schönlein purpura.

Pathognomonic signs

None or very few of the examples here are pathognomonic in the true sense of the word. For example, Parkinsonism is not only seen in Parkinson's disease.

See also

External links

pathognomonic in German: Pathognomonisch
pathognomonic in Spanish: Patognomónico
pathognomonic in French: Pathognomonique
pathognomonic in Dutch: Pathognomonisch
Privacy Policy, About Us, Terms and Conditions, Contact Us
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2
Material from Wikipedia, Wiktionary, Dict
Valid HTML 4.01 Strict, Valid CSS Level 2.1