A 45-year-old woman presents with a painless, irregular breast mass on self-exam. Mammogram shows an irregular spiculated mass. What is the next step?
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A
Repeat mammogram in 6 months (BI-RADS 3 follow-up)
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B
Core needle biopsy
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C
Fine-needle aspiration cytology only
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D
Diagnostic ultrasound and defer biopsy