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5349 Pathology

A 26-year-old woman has a lumps in her left breast. On physical examination, she has an irregular, firm, 2-cm mass in the upper inner quadrant of the breast. No axillary adenopathy is noted. A fine-needle aspirate of the mass shows anaplastic ductal cells. The patient’s 30-year-old sister was recently diagnosed with ovarian cancer, and 3 years ago her maternal aunt was diagnosed with ductal carcinoma of the breast and had a mastectomy. Mutation involving which of the following genes is most likely present in this family?

ABCL2 (anti-apoptosis gene)
BBRCA1 (DNA repair gene)
CERBB2 (growth factor receptor gene)
DHST1 (fibroblast growth factor gene)
Pathology
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