The disease starts either as a cancerous tumor, or it starts when a cyst becomes cancerous.

该疾病源于癌性肿瘤，或者源于囊肿癌变。

Most of the families.my friends have people that's cancerous.

几乎所有的家庭，我的朋友都有得癌症的人。

Doctors can also then test the polyp for cancerous cells.

医生然后通过息肉来检查癌细胞的存在。

Patients in the study first receive treatment to destroy cancerous cells.

该研究中的患者首先接受摧毁癌细胞的治疗。

When they can't reproduce, cancerous cells dieoff instead of becoming dangerous.

若癌细胞无法复制，它们就会消亡从而不（对人体）造成威胁。

If you have DNA in a cell, and that cell is cancerous.

如果细胞内有DNA，而且细胞是癌细胞。

She had the cancerous tumor removed along with parts of her neck.

她切除了癌性肿瘤以及颈部的部分区域。

Bandi's investigation was expected to show an infection or a cancerous tumor.

班迪通过检查预计这名女子受到了感染或患癌症。

Freckles are usually harmless, but some skin spots can be cancerous – connected to cancer.

雀斑通常是无害的，但一些皮肤斑可能会致癌——与癌症有关。

So cancerous tumors or cysts can't be seen or felt.

所以人们看不见也感觉不到癌性肿瘤或囊肿。