Comparison of cytomorphology in specimens obtained by random periareolar fine needle aspiration and ductal lavage from women at high risk for developmentof breast cancer

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Abstract

Summary

Ductal lavage (DL) and random periareolar fine needle aspiration (RPFNA) are both being used to harvest epithelial cells for risk assessment as well as response evaluation in chemoprevention trials. The magnitude of increase in relative risk has been defined in a prospective study for RPFNA but not for DL atypia. We attempted both procedures in 26 women at high risk for development of breast cancer. Median age was 43 (range 32–57); 15 women were premenopausal, with 6 of the postmenopausal women on HRT. Collection of nipple aspirate fluid (NAF) was attempted and, if successful, was followed by DL; RPFNA was then performed on all women. Both procedures were attempted the same day (follicular phase of menstrual cycle if premenopausal) in 24 subjects and within three months for two subjects. Twenty-three subjects produced NAF, 17 of the 23 (74%) had a successful duct cannulation as part of the DL procedure, with 16 yielding sufficient ((10) ductal cells for morphologic assessment. Twenty-five of 26 (96%) subjects had a successful RPFNA procedure with adequate cellularity for morphology. There was concordance between DL and RPFNA specimens for traditional cytologic category assessment in 10/16 (63%), Masood index score in 13/16 (82%), and Consensus Panel assessment in 12/16 (75%) of specimens. We conclude that same day DL and RPFNA is feasible, with 62% and 96% of high-risk women having a successful procedure with evaluable cytomorphology. RPFNA was more likely to yield an evaluable specimen, but if a cellular DL specimen was obtained, morphology was generally similar.

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