Kinga Kołcz, Elżbieta Ostańska, Katarzyna Kosior, Adam Reich, Magdalena Żychowska
{"title":"局限于脐部的扁平色素苔藓- 1例皮肤镜检查结果","authors":"Kinga Kołcz, Elżbieta Ostańska, Katarzyna Kosior, Adam Reich, Magdalena Żychowska","doi":"10.5603/fd.a2023.0014","DOIUrl":null,"url":null,"abstract":"Lichen planus pigmentosus inversus (LPPI) is a rare variant of lichen planus. Its etiopathogenesis is not fully understood. Koebner’s phenomenon is considered to be a potential triggering factor, which may explain the localization of skin lesions in flexural and intertriginous areas that are not exposed to ultraviolet. A case of a 32-year-old female patient is reported, in whom the umbilicus was the only site involved by LPPI. Dermatoscopy revealed irregular pinkish structureless areas intermingled with whitish lines, grey dots, and a grey-black structureless area. The observed features did not allow a clear diagnosis. Due to the unknown duration of the lesions and technical difficulties with videodermoscopic monitoring, the lesion was excised with a 1-mm margin. Histopathological examination was consistent with the diagnosis of LPPI.","PeriodicalId":112619,"journal":{"name":"Forum Dermatologicum","volume":"44 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Lichen planus pigmentosus inversus limited to the umbilicus — a case report with dermoscopic findings\",\"authors\":\"Kinga Kołcz, Elżbieta Ostańska, Katarzyna Kosior, Adam Reich, Magdalena Żychowska\",\"doi\":\"10.5603/fd.a2023.0014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Lichen planus pigmentosus inversus (LPPI) is a rare variant of lichen planus. Its etiopathogenesis is not fully understood. Koebner’s phenomenon is considered to be a potential triggering factor, which may explain the localization of skin lesions in flexural and intertriginous areas that are not exposed to ultraviolet. A case of a 32-year-old female patient is reported, in whom the umbilicus was the only site involved by LPPI. Dermatoscopy revealed irregular pinkish structureless areas intermingled with whitish lines, grey dots, and a grey-black structureless area. The observed features did not allow a clear diagnosis. Due to the unknown duration of the lesions and technical difficulties with videodermoscopic monitoring, the lesion was excised with a 1-mm margin. Histopathological examination was consistent with the diagnosis of LPPI.\",\"PeriodicalId\":112619,\"journal\":{\"name\":\"Forum Dermatologicum\",\"volume\":\"44 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-09-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Forum Dermatologicum\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5603/fd.a2023.0014\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Forum Dermatologicum","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5603/fd.a2023.0014","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Lichen planus pigmentosus inversus limited to the umbilicus — a case report with dermoscopic findings
Lichen planus pigmentosus inversus (LPPI) is a rare variant of lichen planus. Its etiopathogenesis is not fully understood. Koebner’s phenomenon is considered to be a potential triggering factor, which may explain the localization of skin lesions in flexural and intertriginous areas that are not exposed to ultraviolet. A case of a 32-year-old female patient is reported, in whom the umbilicus was the only site involved by LPPI. Dermatoscopy revealed irregular pinkish structureless areas intermingled with whitish lines, grey dots, and a grey-black structureless area. The observed features did not allow a clear diagnosis. Due to the unknown duration of the lesions and technical difficulties with videodermoscopic monitoring, the lesion was excised with a 1-mm margin. Histopathological examination was consistent with the diagnosis of LPPI.