Organ | Examination | Age of beginning (years) | Frequency |
---|---|---|---|
CHEK2 (1100delC, IVS2+1G>A, del5395), NBS1 (657del5), NOD2 (3020insC), CDKN2A (A148T) | self examination | 20 | every month |
 | medical palpation | 20-25 | every 6 months |
 | USG | 25 | every 12 months (6 months after mammography) |
BRCA2 (5972C/T), CYP1B1 (homozygote GTC) | mammography | 35 | every 12 months |
CHEK2 (I157T) | self examination | 20 | every month |
 | medical palpation | 40 | every 6 months |
 | USG | 40 | every 12 months (6 months after mammography) |
 | MRI | 40 | every 12 months |
 | mammography | 40 | every 12 months |