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ICARE Social Media Post September 2020

Biallelic Mutations in BRCA1 Cause Fanconi Anemia

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BRCA1 is not typically thought to be one of the genes which cause Fanconi anemia. However, rare cases of individuals with biallelic BRCA1 mutations (mutations in both copies of the gene) have been reported. One case involved a woman who had breast cancer at age 23, and was born with multiple birth defects consistent with Fanconi anemia-like disorder. Another case involved a woman diagnosed with ovarian cancer at age 28, who had short stature, microcephaly, developmental delay, and significant toxicity from chemotherapy (all consistent with Fanconi anemia).

These cases highlight the importance of considering BRCA1 testing among individuals suspected to have Fanconi anemia or Fanconi anemia-like disorders. It also highlights the importance of discussing the potential risks of having a child with Fanconi anemia or Fanconi-anemia-like disorders if both parents have a BRCA1 mutation.

Check out the following articles at:

https://www.ncbi.nlm.nih.gov/pubmed/25472942

https://www.ncbi.nlm.nih.gov/pubmed/23269703

Permanent link to this article: https://inheritedcancer.net/post90120/