This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Anatomy
[{'content': 'A female patient present with a hard mobile lump in her right breast. Which investigation would be most helpful in making the diagnosis \nSelect and explain. \nA. FNAC, B. Needle biopsy, C. Excision biopsy, D. Mammography', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Needle biopsy: Histology can be obtained under local anaesthesia using a springloaded core needle biopsy device. Cytology is obtained using a 21G or 23G needle and 10-mL syringe with multiple passes through the lump with negative pressure in the syringe. The aspirate is then smeared on to a slide, which is air dried or fixed Ref: Bailey and love 27th edition Pg no : 864', 'role': 'assistant'}]