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滤泡型贝克痣:病例系列及文献复习。

Follicular Becker's nevi: A case series and review of literature.

机构信息

Department of Dermatology & Venereology, All India Institute of Medical Sciences, New Delhi, India.

Department of Pathology, Vardhaman Mahavir Medical College and Safdarjung Hospital, New Delhi, India.

出版信息

Pediatr Dermatol. 2024 Nov-Dec;41(6):1183-1187. doi: 10.1111/pde.15641. Epub 2024 Apr 30.

Abstract

The follicular variant of Becker's nevus is an under-reported entity. We present the rare occurrence of follicular Becker's nevus in 7 patients, confirmed through dermoscopy and histopathological examination. Dermoscopy shows perifollicular hypopigmentation surrounded by a well-defined net-like pigmentation corresponding clinically to the presence of folliculocentric macules. Histology shows prominent basal and suprabasal melanization surrounding the follicle, corresponding to well-defined net-like pigmentation seen on dermoscopy. However, the melanization does not extend along the entire length of the follicular epithelium leading to perifollicular hypopigmentation on dermoscopy. Though biopsy is confirmatory, it is not usually necessary.

摘要

贝克氏痣的滤泡型是一种报道较少的疾病。我们通过皮肤镜和组织病理学检查证实了 7 例罕见的贝克氏痣滤泡型患者。皮肤镜下表现为围绕毛囊的色素减退,周围有明确的网状色素沉着,与临床所见的毛囊中心性斑点相对应。组织学表现为毛囊周围明显的基底细胞和棘层细胞黑色素化,与皮肤镜下明确的网状色素沉着相对应。然而,黑色素化并没有沿着整个毛囊上皮延伸,导致皮肤镜下的毛囊周围色素减退。虽然活检具有确诊意义,但通常并非必需。

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