The doctor found dysplastic changes in his skin tissue and recommended further examination.

dysplastic 是由前缀 dys-（表示"异常的、不良的"）和词根 -plasia（表示"发育、形成"）加上形容词后缀 -tic 构成的形容词。dysplasia 指"发育异常"，dysplastic 就是"发育不良的"或"发育异常的"。