WHO classification

WHO classification

Surgical pathology A classification of non-Hodgkins lymphomas based upon an updated version of the REAL classification system; the WHO classification system is currently accepted as the authoritative standard for diagnosing lymphomas; it does not group lymphomas into prognostic categories, but, rather, considers each lymphoma as a separate disease; the WHO system uses morphology, immunophenotyping, and genotyping to classify the malignancy, which is often graded, typically from I to IV. See Non-Hodgkin's lymphoma, REAL classification. Cf Hodgkin's disease, Working formulation.

Patient discussion about WHO classification

Q. How are Heart Murmurs Classified? What are the characteristics of different heart murmurs?

A. Heart murmurs are charachterized by their location, their strength, their timing, whether or not they radiate and so on. For example, this is a sound of a heart murmur compatible with a disease called aortic stenosis-
http://www.dundee.ac.uk/medther/Cardiology/audio/as.wav
Notice that the murmur begin with the heart sound and lasts all through the beat.

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