Squamous cell carcinoma is also known to arise at the lip vermillion in those who smoke, right at the location where a person holds the smoking device, such as a cigarette or pipe.

研究现，鳞状细胞癌也于吸烟者唇红，部位恰在吸烟者叼着烟具（如烟或烟斗）地方。

And so if we assume that all of these women have nipple cancer at the nipple, which is not the most common location of breast cancer, most common breast cancers appear in the upper outer quadrant of the breast.

因此，如果我们假设所有这些乳头癌都在乳头，而实际上乳头并不是乳腺癌最常见病部位，大多数乳腺癌实际上在乳房外上象限。