迟发性皮肤卟啉病(简称PCT),是一种具有某些皮肤和生物化学特征的卟啉代谢疾病.患者暴露部位出现水疱、粟丘疹、瘢痕、色素沉着、多毛及硬皮病样斑块.尿化学分析常见尿卟啉过多.由于“遗传性PCT”这一术语既用于混合型卟啉病(Porphyria variegata, PV)又用于PCT,因此在名称上存在着混乱.PCT有时又称症状性PCT.PCT可分为两种类型.一类似有以肝(有时还有红细胞)缺乏尿卟啉 Late-onset cutaneous porphyria (PCT) is a porphyrin metabolic disease with certain cutaneous and biochemical characteristics such as blisters, milia, scars, pigmentation, hirsutism and scleroderma Mass analysis of urine Uroporphyrins are common, and there is chaos in the name because the term “hereditary PCT” is used both for Porphyria variegata (PV) and for PCT. PCT is also sometimes referred to as symptomatic PCT. PCT can be divided into two types. One is similar to the lack of uroliths in the liver (and sometimes in erythrocytes)