Reduction of the surgical excision rate in benign breast disease using fine needle aspiration cytology with immediate reporting

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Abstract
Patients attending a breast clinic in two different periods were studied. In the first period fine needle aspiration cytology (FNAC) was not available and in the second it was used on all discrete solid breast lumps and reported immediately in the clinic. With the use of FNAC the overall surgical excision rate for discrete solid lumps was reduced from 83 percent to 41 percent and the excision rate in patients with benign disease was reduced from 74 per cent to 23 per cent (P<0·001). All patients with breast cancer in the second period had malignant cytology and no patient with benign or acellular cytology has been shown, after a minimum follow-up period of 18 months, to have breast cancer. Using FNAC with immediate reporting, the number of operations performed in patients with benign breast disease can be safely reduced.