lesion
/ˈliːʒən/noun
- chiefly Medicine a region in an organ or tissue which has suffered damage through injury or disease, such as a wound, ulcer, abscess, tumour, etc【主医】（器官或组织受伤、溃疡、脓肿和肿瘤等引起的）损伤, 病变。
词源
late Middle English: via Old French from Latin laesio（n-）， from laedere 'injure'.