Genetic Testing for Hereditary Risk Assessment of Breast Cancer | MedGenome | MedGenome - Leading Genetics Diagnostics Lab in India - Part 18001033691

Patient Stories

BRCA testing helps a young lady understand the risk of hereditary cancer running in the family.

33 year old Suvarna (name changed) was happy with her family life until she was diagnosed with Breast Cancer.

Breast cancer is one of the most common hereditary cancers. A woman is at 12% lifetime risk of developing breast cancer[1]. These chances further worsen if the there is BRCA mutation. About 72% of women who inherit a harmful BRCA1 mutation and about 69% of women who inherit a harmful BRCA2 mutation will develop breast cancer by the age of 80[2].

Unaware about these facts, Suvarna was happy spending her time with family. In retrospect, she wishes she knew about the BRCA gene and how there is a specific pattern of hereditary breast and ovarian cancer in her family. She had a family history of cancer with her mother affected with ovarian cancer, maternal aunt affected with breast cancer and maternal cousins with gynaecological malignancy. Her mother was diagnosed with carcinoma ovary – stage IV at the age of 63 and had received 3 cycles of chemotherapy.

The treating clinician observed this pattern and recommended BRCA test to Suvarna. Not to his surprise, Suvarna was found to possess a pathogenic variant in BRCA1 gene. A heterozygous nonsense variation in exon 10 of the BRCA1 gene (chr17:41243941G>G/A; c.3607C>C/T) that results in a stop codon and premature truncation of the protein at codon 1203 (p.Arg1203Ter) was detected. This variation has previously been reported in individuals and families affected with breast and ovarian cancer and has been reported to segregate with disease in one family. Based on the findings, the treating clinician was able to alter the treatment course.

Suvarna’s mother who had Ovarian cancer was also found to harbour the same pathogenic variation. This made a strong case for testing Suvarna’s siblings. However, her two unaffected siblings (aged 36 and 39 yrs) tested negative for this variation.


  • BRCA testing helped a woman understand the risk of hereditary breast and ovarian cancer running in the family. The findings from test result also helped the treatment course
  • The outcome of BRCA test also made the family test unaffected individuals, which eased the worry of their higher risk of developing hereditary breast and ovarian cancer when tested negative


1. Howlader N, Noone AM, Krapcho M, et al. (eds). SEER Cancer Statistics Review, 1975-2014, National Cancer Institute. Bethesda, MD,, based on November 2016 SEER data submission, posted to the SEER web site, April 2017.

2. Kuchenbaecker KB, Hopper JL, Barnes DR, et al. Risks of breast, ovarian, and contralateral breast cancer for BRCA1 and BRCA2 mutation carriers. JAMA 2017; 317(23):2402-2416.

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