Now, a lesion that looks like leukoplakia, but isn't, is an area of frictional keratosis.

如图一种看起来像口腔黏膜白斑，但其实病损——摩擦性角化。

Specific risk factors include alcohol, hot fluids, caustic strictures, Plummer-Vinson syndrome, and palmoplantar keratosis.

特有危险因素包括饮酒、喝热液、腐蚀性食管狭窄、Plummer-Vinson综合征与掌角化病。

An area of frictional keratosis is not a precancerous lesion and usually fades away once the irritation stops.

摩擦性角化属于癌前病变，一般当刺激因素去除后，它会自行消退。

Uh...actinic keratosis is, uh, a premalignant lesion.

光线性角化病 呃 一种癌前病变。

Sometimes I'm feeling crazy, and I put it on my arms a little bit too, because it's exfoliating, resurfacing, and I've got keratosis polaris, KP, thing on my arms and I'll do anything to mitigate that.

有时我感觉很疯狂， 我也把它放在我手臂上一点点，因为它正在去角质， 重塑皮肤，我手臂上有北极角化病， KP，我会做任何事情来减轻它。