Gene Abnormality Table
Genetic Abnormalities Associated with Breast Cancer
Gene Abnormality |
Syndrome |
Associated cancers |
Other associated conditions |
High Penetrance Genes |
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BRCA1 |
Hereditary breast-ovarian cancer syndrome |
Breast, ovarian, pancreas, prostate cancers; primary peritoneal tumors, melanoma; Male breast cancer |
|
BRCA2 |
Hereditary breast-ovarian cancer syndrome |
Breast, ovarian, pancreas, prostate cancers; melanoma, primary peritoneal tumors; Male breast cancer |
|
CDH1 |
Hereditary diffuse gastric cancer syndrome |
Diffuse gastric cancer, lobular breast cancer, signet ring colorectal cancer |
|
PTEN |
Cowden syndrome (PTEN hamartoma tumor syndrome) |
Major criteria: Endometrial cancer, Breast cancer, Thyroid cancer (follicular type) Minor criteria: Colon cancer, Thyroid cancer (papillary type), Renal cell cancer |
Major criteria: GI hamartomas, adult Lhermitte-Duclos disease, macrocephaly, multiple mucocutaneous lesions, pigmentation of the glans penis Minor criteria: Autism spectrum disorder, ?3 lipomas, testicular lipomatosis, vascular anomalies, ?3 esophageal glycogenic acanthosis, thyroid nodules, IQ ?75, uterine fibroids |
STK11 |
Peutz-Jeghers syndrome |
Breast cancer |
GI hamartomatous polyps |
tp53 |
Li-Fraumeni syndrome |
Soft tissue sarcoma, osteosarcoma, leukemia, lymphoma; Breast, brain, adrenocortical, colorectal, bronchoalveolar cancers |
|
Intermediate Penetrance Genes |
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ATM |
Ataxia-telangiectasia syndrome (Louis-Barr syndrome) |
Non-hodgkin lymphoma, leukemia, medulloblastoma, basal cell carcinoma, gliomas; Breast, stomach, uterine, bladder, lung, pancreas, and ovarian cancers |
Ataxia-telangiectasia |
BARD1 |
|
Breast cancer, neuroblastoma |
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BRIP1 |
|
Breast cancer |
Fanconi anemia |
CHEK2 |
|
Prostate, breast, lung, colon, kidney, thyroid, ovarian cancers; brain tumors, osteosarcoma |
|
PALB2 |
|
Breast cancer, pancreatic cancer |
Fanconi anemia; tracheoesophageal fistula |
Low Penetrance Genes |
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BLM |
Bloom syndrome |
Acute leukemia, lymphoma, Wilms tumor; Breast, lung, cervix, tongue, larynx, esophagus, colon, skin cancers |
Microcephaly, telangiectasias, café-au-lait spots, sterility in males & decreased fertility in females; increased susceptibility to infections |
CASP8 |
|
Breast , lung, hepatocellular cancer |
Autoimmune lymphoproliferative syndrome |
CTLA4* |
|
Breast cancer |
Autoimmune Addison disease, Graves disease, celiac disease, systemic lupus erythematosus, Hashimoto thyroiditis, rheumatoid arthritis, Type 1 diabetes |
CYP19A1* |
|
Breast cancer |
Aromatase deficiency, aromatase excess syndrome |
FGFR2 |
|
Stomach, prostate, cervical, breast, pancreas, head and neck cancers |
Pfeiffer syndrome, Jackson-Weiss syndrome, lacrima-auriculo-dento-digital syndrome, Apert syndrome, Beare-Stevenson cutis gyrata syndrome, Crouzon syndrome |
H19* |
|
Breast cancer |
Beckwith-Wiedemann syndrome, Russel-Silver Syndrome |
LSP1* |
|
Breast cancer |
|
MAP3K1* |
|
Breast cancer |
Swyer syndrome |
MRE11A |
|
Breast, ovarian cancers |
Ataxia-telangiectasia, nephronophthisis-related ciliopathies |
NBN/NBS1 |
Nijmegen Breakage Syndrome |
Breast, prostate, ovarian cancers; melanoma, leukemia |
Growth deficiency, microcephaly, bird-like facies, recurrent infections |
NF1 |
Neurofibromatosis Type 1 (von Recklinghausen disease) |
Malignant peripheral nerve sheath tumor, astrocytoma, pheochromocytoma, carcinoid tumor, neuroblastoma, leukemia, Wilms tumor, sarcomas, ependymoma, primitive neuroectodermal tumor, breast cancer |
Café-au-lait macules, ?2 neurofibromas, multiple axillary or inguinal freckles, |
RAD50 |
Nijmegen Breakage Syndrome-like Disorder |
Breast, ovarian cancers |
Growth deficiency, microcephaly, bird-like facies |
RAD51* |
|
Breast cancer |
Congenital mirror movement disorder |
RAD51c |
|
Breast, ovarian cancers |
Fanconi anemia, tracheoesophageal fistulae |
RB1 |
Hereditary Retinoblastoma |
Retinoblastoma, various sarcomas, melanoma, brain tumors, leukemia, lymphoma, malignant phyllodes tumors |
|
RINT1 |
|
Breast cancer |
|
TERT* |
|
Melanoma, AML, breast cancer |
Dyskeratosis congenita, idopathic pulmonary fibrosis, isolated aplastic anemia |
TOX3* |
|
Breast cancer |
Restless leg syndrome |
XRCC2 |
|
Breast cancer |
|
XRCC3 |
|
Breast cancer, cutaneous malignant melanoma 6 |
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*A few studies have demonstrated a link between mutations in these genes and breast cancer. Currently more research is necessary to determine the true risk of breast cancer development with these mutations.