Retrospective analysis of longitudinal melanonychia: A Chinese experience

Frontiers in Pediatrics

Pediatrics

Anqi Lyu¹  Qiying Wang²  Yinglong Hou² 

[1] Department of Dermatology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, China;Department of Plastic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China;

关键词: Hutchinson's sign;    longitudinal melanonychia;    nail matrix nevus;    subungual melanoma;    retrospective study;   

DOI  :  10.3389/fped.2022.1065758

 received in 2022-10-10, accepted in 2022-12-22,  发布年份 2023

来源: Frontiers

【 摘 要 】

ObjectiveWe aimed to analyze the clinical and histopathologic characteristics of longitudinal melanonychia (LM), explore the differences between adults and children, and propose some recommendations.MethodsData on pigmentation, lentigo, subungual melanoma (SUM), and nail matrix nevus (NMN) were acquired for comparison.ResultsLesions on thumbs in the children’s group were significantly fewer (p = 0.006) than in adults. Lesions on little fingers in children were more than in adults; the difference was statistically significant (p = 0.025). The widths of bands in adults were wider than in children (p < 0.001), and the duration and width were positively correlated (r = 0.474). There was more pigmentation in adults than in children; the difference was statistically significant (p = 0.005). NMN was reported in 56.1% children and 34.3% adults; the difference was statistically significant (p = 0.005). Adults had six SUM cases, whereas none in children; the difference was statistically significant (p = 0.006). The recurrence rate in adults was significantly higher than in children (p = 0.019).ConclusionThe widths of bands increase with the course, indicating that LM may be progressive. The four pathological types have different distributions with age, and each type requires different treatment. The lower recurrence rate in children suggests that LM needs diagnosis and appropriate treatment as soon as possible.

【 授权许可】

Unknown   
© 2023 Lyu, Hou and Wang.