关键词: 皮肤色素沉着, 获得性色素沉着, 儿童, 额颞部

Abstract: 【Abstract】 To report 7 Chinese children with characteristic hyperpigmented macules on the forehead and temples. Among the 7 cases, there were 2 males and 5 females, with the age at onset ranging from 9 to 24 months (12.43 ± 5.32 months), and a disease duration of 1 to 4 months (2.57 ± 1.27 months). Skin examination revealed that the children presented with varying numbers of irregular brown macules and patches scattered on their foreheads and temples, without distinct desquamation. Dermoscopic examination revealed multiple yellowish-brown patches with irregular borders, and linear vessels were observable in some skin lesions. A diagnosis of acquired facial hyperpigmented macules was made in these children.The children received no treatment. After 2 years of follow-up, hyperpigmented macules completely subsided in 2 cases and regressed to varying degrees in 4 cases, while 1 case exhibited no changes in the skin lesions. Considering the literature and the cases discussed in this article, it is hypothesized that acquired facial hyperpigmented macules in young children may represent an independent condition.

Key words: Skin pigmentation, Acquired macular hyperpigmentation, Children, Frontotemporal region