A Case of Atypical Intraductal Papilloma of the Right Breast with Left Breast Cancer

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  • 両側乳腺腫瘍 (右異型管内乳頭腫, 左乳頭腺管癌) の1例

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A case of bilateral breast tumors in a 33-year-old woman with complaints of a tumor mass in the left breast and bloody discharge from the right nipple is reported together with the results of cytological and light microscopic examinations.<BR>The tumor of the left breast was 4×6cm in size, well demarcated, and diagnosed clinically as fibroadenoma. In cytology of the touch smears of the resected tumor were found distinct malignant cells, and the specimens of the resected tumor were diagnosed histologically as “Noninfiltrating papillary carcinoma”.<BR>The smears of bloody discharge from the right nipple which was free from tumor mass showed the following features: the cells were arranged in clusters; the cytoplasmas were 9-24 microns in size; the nuclei were 7.5-18 microns in diameter, round or oval in shape, and had fine or coarse granules. These cytological features were judged as malignant. But the histological features of the specimens obtained by the simple mastectomy revealed atypical intraductal papilloma and/or duct papillomatosis (borderline).

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