Papillary carcinoma of the breast is a rare neoplasm characterized by a low grade of malignancy. From the files of the Department of Histopathology of Conegliano Veneto City Hospital, Conegliano Veneto, Italy, 16 cases of papillary breast carcinoma diagnosed by fine-needle aspiration cytology have been selected. A multiparametric morphologic study has been performed in order to contribute to the cytologic characterization of this rare group of breast malignancies. The authors believe that aspiration biopsy cytology is able to provide an accurate preoperative diagnosis.
Tubular carcinoma represents a rare, well-differentiated type of breast malignancy, characterized by relatively unaggressive clinical behavior. Cytologic diagnosis of this subgroup of tumors is considered difficult as cell population usually presents in tightly cohesive clusters and shows minimal atypia. Cytomorphologic features of 15 examples of histologically proven pure tubular carcinomas of the breast are herein reported. If a constellation of morphologic criteria is critically evaluated, tubular carcinoma may be diagnosed on cytologic specimens. Aspiration biopsy cytology represents an optimal diagnostic tool in the preoperative diagnosis of breast masses. Its application to the detection of this special type of breast carcinoma permits better planning of therapeutic procedures.
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