N a swelling in the soft tissue that occurs over a joint, usually caused by repeated injury 水囊瘤 [pathol]
hydroma age水按摩
cystic hydroma囊状水瘤;囊性水瘤
Subdural hydroma硬膜下积液
traumatic subdural hydroma外伤性硬脑膜下积液;又名外伤性硬脑膜下水瘤;外伤性硬膜外积液;积液
N（名词） a swelling in the soft tissue that occurs over a joint, usually caused by repeated injury 水囊瘤 [pathol]