Dermoscopy of multiple warty dyskeratomas

Abstract

Warty dyskeratoma (WD), also known as isolated follicular dyskeratosis, is a relatively uncommon benign epidermal proliferation first reported by Szymanski in 1957 [1]. WD presents as a whitish or grayish solitary papule or as a small nodule with a keratotic plug, usually limited to the head and neck of middle-aged patients. Lesions are generally solitary, but grouped verrucous papules on the scalp have been reported [2]. Oral and genital mucosa involvement has been described [3]. The dermoscopic aspect of WD has been recently reported as a pale homogeneous area with brown to yellow marbled clods [4]. The pathogenesis of WD is unclear. The common histopathologic finding is the presence of focal acantholysis and dyskeratosis [5]. We present a case of a 59-year-old male patient with multiple warty dyskeratomas located on the back, in which dermoscopy was helpful in clinical diagnosis.

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