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Fine‐needle aspiration cytodiagnosis of breast masses in pregnant and lactating women and its impact on management

We reviewed our experience with 9.726 cases of fine‐needle aspiration cytology of the breast that were done from January 1983 to February 1992. During our review, we found that 214 aspirates had been submitted from pregnant and lactating women for the investigation of breast mass(es). Despite a variable clinical presentation and spectrum of cytologic findings, we considered the application of aspiration cytology in these women as useful as in the nonpregnant‐nonlactating women for management decision. A team approach between the clinician and cytopathologist was always maintained; with this approach, the false‐positive or ‐negative diagnoses were reduced to almost nil. In all cases in which the cytodiagnosis of carcinoma of breast was made, the findings corresponded with subsequent cell blocks from the aspirate and tissue examination. Benign lesions were diagnosed cytogically with minimal difficulty, and all aspirates that were less than optimal for cytodiagnosis were repeated to minimize the chance of missing an abnormality. All the benign lesions were followed throughout pregnancy, postpartum, and thereafter; if the mass persisted, the aspiration was repeated. With this protocol of follow‐up, the need for a customary liberal surgical biopsy was reduced to a minimum.