Meaning of liú:
liú
瘤
Noun
tumor; old variant of 瘤[liu2]
Yīshēng shuō tā yào dòng shǒushù qùchú yīgè liú.
医生说他要动手术去除一个瘤。
The doctor said he needs surgery to remove a tumor.
Yīshēng shuō wǒ jiǎo shàng de zhǒngkuài kěnéng shì yīgè liú.
医生说我脚上的肿块可能是一个瘤。
The doctor said the lump on my foot might be a tumor.