CK7 expression was limited in the ductal plate cells and bile duct cells from the 14th week.

CK7仅限于14周龄之后的胆管板细胞和胆管上皮内表达。

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The intima invaginates into each secretory cell and forms a duct which is surrounded by duct cells.

内膜内陷到各个分泌细胞间，形成一个外面由管状细胞包裹的管腔。

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The immunohistochemistry staining of CK7, CK19 was positive in subculture eccrine sweat gland duct cells.

外泌汗腺细胞CK 7、CK 19免疫组织化学染色均为阳性。

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Even in the precancerous stage, called ductal carcinoma in situ (DCIS) when abnormal cells are confined to a milk duct, physicians almost always advise women to have a lumpectomy or mastectomy along with radiation, because about 20% of the 65, 000 cases of DCIS found every year in the U.S. become invasive cancer.

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In DCIS, abnormal cells multiply and form a growth within a breast milk duct .

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