肿瘤是良性的。

The tumor is benign.

良性脉络膜黑(色)素瘤

benign choroid melanoma

孤立性良性许旺氏细胞瘤

solitary Schwann’s cell tumor

这个肿瘤是良性的还是癌肿性的?

Is the growth benign or cancerous?

良性肿瘤不会对你有致命的伤害。

A benign tumour will not cause you any fatal harm.

粘液瘤一种良性肿瘤，最常见于心脏，它由黏液里的胶状结缔组织构成

A benign tumor, most often found in the heart, that is composed of connective tissue embedded in mucus.