noun🔗Share血管瘤 A congenital, benign tumor of endothelial cells."The baby was born with a small, red birthmark on her arm, which the doctor diagnosed as a hemangioma, a benign tumor made of blood vessels. "这个婴儿出生时手臂上有一个小小的红色胎记,医生诊断为血管瘤,一种由血管组成的良性肿瘤。medicinediseasebiologyanatomybodyorganbiochemistryphysiologyChat with AIVocabulary GamePractice Reading