piezogenic papules的用法和樣例：
例句
- Greasy papules and plaques arise on the seborrheic areas and in the flexures.
常在皮脂溢出部位和屈側皮膚見油膩性丘疹和斑塊。 - The primary lesions consist of purpuric papules which undergo superficial ulceration, followed by the development of irregular atrophic scars.
其初期的病灶為紫斑性丘疹，進而形成表淺之潰瘍，而後形成不規則狀萎縮性疤痕。
