benign tumor

名词 benign tumor:

1. a tumor that is not cancerous
   同义词：benign tumour, nonmalignant tumor, nonmalignant tumour, nonmalignant neoplasm

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