Cytologic diagnosis of papillary carcinoma of the breast in needle aspirates

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Abstract
Eleven cases of rare papillary carcinoma of the breast diagnosed by fine-needle aspiration cytology (FNAC) are reported. Five of these were pure papillary carcinomas and six were mixed papillary and ductal, lobular, or mucinous carcinomas. In each case, cytological material was collected by washing the needle and syringe contents into 30% alcohol in saline, and the Gelman cytosieve method was used for the cytological preparations. In this article, the cytological features of these tumors are described, including the presence of single papillae and papillary clusters, tall columnar cells, diathesis of blood with hemosiderin-laden macrophages, naked nuclei, and high cell recovery.