1. A consultand is an individual under evaluation for predicting his or her own future risk or the risk of his or her offspring. The arrow identifies the consultand. The 2 letter abbreviation with number (eg, Co 53) represents the diagnosis an individual received, followed by the age at the diagnosis. This pedigree meets Amsterdam II criteria,14 which include 3 relatives with a hereditary nonpolyposis colorectal cancer–associated tumor, such as colon cancer, endometrial cancer, ureteral cancer, cancer of the renal pelvis, ovarian cancer, stomach cancer, or small bowel cancer; 1 relative who is a first-degree relative of the other 2; cancers affecting at least 2 generations; and 1 or more cases diagnosed before aged 50 years.
Source: Cancer, Family History, The Rational Clinical Examination: Evidence-Based Clinical Diagnosis
Citation: Simel DL, Rennie D. The Rational Clinical Examination: Evidence-Based Clinical Diagnosis; 2016 Available at: Accessed: October 14, 2017
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