Sane Roja Renuka, Manoharan K, Sukanya G, Udhayini Kalimi Venkata
Department of Dermatology Venereology and Leprosy, Sree Balaji Medical College and Hospital, Chrompet, Chennai, Tamil Nadu, India.
Indian Dermatol Online J. 2022 Dec 14;14(1):83-87. doi: 10.4103/idoj.idoj_320_22. eCollection 2023 Jan-Feb.
The appearance of widely diffuse hypopigmented keratotic lesions has been linked to a number of dermatological conditions like pityriasis versicolor, stucco keratoses, confetti leukoderma, and guttate leukoderma of Darier's disease. Specific clinical and histologic characteristics distinguish them from one another. One of the differentials for diffuse hypopigmented keratotic lesions has been a novel entity called disseminated hypopigmented keratoses (DHK). We are hereby highlighting the importance of bedside investigations like potassium hydroxide wet mount and dermatoscopy in ruling out such misleading dermatological conditions. It looks to be benign and slowly progressing, albeit not linked to any systemic symptoms. We hereby present a case of diffuse hypopigmented keratoses with no proven underlying cause.
广泛弥漫性色素减退性角化性皮损的出现与多种皮肤病有关,如花斑癣、灰泥角化病、点滴状色素脱失性白皮病以及 Darier 病的点滴状白皮病。特定的临床和组织学特征将它们彼此区分开来。弥漫性色素减退性角化性皮损的鉴别诊断之一是一种名为播散性色素减退性角化病(DHK)的新实体。我们在此强调床边检查如氢氧化钾湿涂片和皮肤镜检查在排除此类具有误导性的皮肤病方面的重要性。它看似良性且进展缓慢,尽管与任何全身症状无关。我们在此呈现一例无明确潜在病因的弥漫性色素减退性角化病病例。