| AD | Autosomal dominant |
| AR | Autosomal recessive |
| BASC | BRCA1-associated genome surveillance complex |
| BC | Breast cancer |
| cAMP | Cyclic adenosine monophosphate |
| DGC | Diffuse-type gastric cancer |
| DSB | Double-strand break |
| ERK | Extracellular signal-regulated kinase |
| FA | Fanconi anemia |
| GTP | Guanosine triphosphate |
| HBOC | Hereditary Breast and Ovarian Cancer |
| HDGC | Hereditary Diffuse Gastric Cancer syndrome |
| HR | Homologous recombination |
| LBC | Lobular breast cancer |
| LFS | Li-Fraumeni syndrome |
| LPV | Likely-pathogenic variant |
| LS | Lynch syndrome |
| MAPK | Mitogen-activated protein kinase |
| MBC | Male breast cancer |
| MMR | Mismatch repair |
| MRI | Magnetic resonance imaging |
| MRN | MRE11-RAD50-NBS1 complex |
| NA | Not assessed |
| NBS | Nijmegen breakage syndrome |
| NCCN | National Comprehensive Cancer Network |
| NGS | Next-Generation Sequencing |
| OC | Ovarian cancer |
| PARP | Poly adenosine-diphosphate ribose polymerase |
| PJS | Peutz-Jeghers syndrome |
| PML | Promyelocytic leukemia protein |
| PV | Pathogenic variant |
| RR | Relative risk |
| RRM | Risk-reducing mastectomy |
| RRSO | Risk-reducing salpingo-oophorectomy |
| TCGA | The Cancer Genome Atlas |
| VUS | Variant of uncertain significance |