WHO criteria in tumor response

The WHO criteria were developed in the 1980s under the auspices of the World Health Organization (WHO) to standardize reporting of cancers in clinical trials.​ Nowadays, newer criteria often based on the WHO criteria (such as RECIST, mRECIST, Choi criteria, Lugano response criteria), have widely replaced the WHO criteria in clinical practice 1.

  • no lesions detected for ≥ 4 weeks 

  • ≥ 50% decrease in sum of the products of diameters
    • confirmed at ≥ 4 weeks
  • ≥25% increase in products of diameters in one or more lesions
  • new lesions
  • none of the above
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Article information

rID: 57912
System: Oncology
Section: Staging
Synonyms or Alternate Spellings:
  • World Health Organisation criteria in tumour response

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