LAUSR

Dear Editor, Eccrine poroma (EP), as first described in 1956 by Goldman et al.,1 is a rare benign adnexal neoplasms originating from intraepidermal region of the eccrine sweat duct that mainly affects the palmoplantar skin. Clinically, the lesions usually present as pinkish, red, flesh-coloured, dome-shaped papules or nodules with smooth or verrucous surfaces that are easily misdiagnosed as basal cell carcinoma, pyogenic granuloma, squamous cell carcinoma and seborrheic keratosis. Reflectance confocal microscopy (RCM), which has shown to be an important in vivo, non-invasive diagnostic technique for skin lesions. Effectiveness of RCM for inflammatory and neoplastic skin diseases has been widely reported in literature.2 Nowadays, dermoscopy is an in indispensable part of the clinical skin examination and greatly improves the clinical diagnosis of many skin tumours. EP have rarely been reported to use RCM examine lesion, and there have been only four such reports in the literature, the four patients ranged in age from 41 to 74 years, and half the patients’ pathologic diagnoses were pigmented EP.3–6 In order to raise awareness of this rare condition among dermatologists, we demonstrate confocal microscopic and dermoscopic features of a case of EP. Herein, we report a 25-year-old Asian male presented with an asymptomatic papule on his right chest for 1 year, without history