Malignant Phyolldes Tumor of the Breast Metastatic to the Lung - A Case Report of Fine Needle Aspiration Cytologic Features -

폐로 전이한 유방의 악성 엽상종양 - 세침흡인 세포학적 소견의 1례 보고 -

Phyllodes tumor of the breast, especially malignant, is a rare tumor which has characteristic cytologic features. We recently experienced a case of fine needle aspiration cytology of malignant phyllodes tumor of the breast metastatic to the lung. The aspirate showed cellular smear with biphasic population of epithelial and stromal cells. Many individual large cells with round hyperchromatic nuclei were found in the necrotic background and stromal cell atypia was also present. Chondrosarcomatous fragments were also seen in cytologic specimens.