结痂的 meaning in English

encrusted
scabbed
scabby

They are also more likely to develop in chronic ulcers and old scar tissue . squamous cell carcinoma starts as a small , firm painless lump most often found on the face , ear or back of the hand . this cancer enlarges fairly quickly and often ulcerates
这种癌症通常生于慢性溃疡及结痂的组织上，初期为细小结实无痛的肿块，最常出现于脸、耳及手背位置，生长得颇快，常会溃疡