ulcerative lesion
Medical term for a lesion characterized by ulceration, used in clinical contexts.
An ulcerative lesion was found in the stomach during the endoscopic examination.
潰瘍 is a general term for ulcer, while 潰瘍性病変 specifically refers to a lesion that is ulcerative in nature.
Compound of 潰瘍 (ulcer) + 性 (nature/characteristic) + 病変 (lesion). The exact historical derivation is uncertain; the term is a modern medical coinage.