ICHD-II Diagnostic Criteria for Headache Attributed to Non-Vascular Intracranial Disorder

A. Progressive headache with at least 1 of the following characteristics and fulfilling criteria C-D:

  1. Daily occurrence
  2. Diffuse and/or constant (non-pulsating) pain
  3. Aggravated by coughing or straining

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Revised Criteria for Hereditary Non-Polyposis Colorectal Cancer (Lynch Syndrome)

Amsterdam Criteria (1991)

Three or more relatives with colorectal cancer, plus all of the following:

  • One affected patient should be a first-degree relative of the other two;

  • Colorectal cancer should involve at least two generations;

  • At least one case of colorectal cancer should have been diagnosed before the age of 50 years.

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