1064 nm Nd:YAG laser treatment of melanocytic nevi of the external auditory canal: a retrospective study of 15 cases
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ORIGINAL ARTICLE
1064 nm Nd:YAG laser treatment of melanocytic nevi of the external auditory canal: a retrospective study of 15 cases Hua Tong 1
&
Jing Zhang 1 & Chenlong Li 1 & Yaoyao Fu 1 & Tianyu Zhang 1
Received: 28 September 2019 / Accepted: 28 April 2020 # Springer-Verlag London Ltd., part of Springer Nature 2020
Abstract The aim of this study was to evaluate the efficacy and safety of 1064 nm neodymium-doped yttrium-aluminum-garnet laser treatment of melanocytic nevus of the external auditory canal. Retrospective chart review of 15 patients operated by 1064 nm Nd:YAG laser in single center. Data from charts and video documentation were collected and analyzed. Between November 2017 and November 2018, 15 patients underwent 1064 nm Nd:YAG laser treatment for melanocytic nevus of the external auditory canal were analyzed in the study. The size of melanocytic nevus ranged from 4 to 8 mm in diameter. A gross total removed was achieved in all cases. Two patients received two sessions of Nd:YAG laser treatments, and the remaining thirteen patients received only one session. After laser treatment, wounds healing well and the average epithelialization time was 2.3 weeks. The mean follow-up was 12 months. There were no recurrence and adverse side effects in all cases. This research supports the use of 1064 nm Nd:YAG laser as a safe and efficacious treatment for melanocytic nevus of the external auditory canal. Keywords External ear canal . Melanocytic nevus . Intradermal nevus . Nd:YAG laser . Wound healing
Introduction Melanocytic nevus of the external auditory canal (EAC) is a rare skin disease of the head and neck [1]. The melanocytic nevus that grows in the eye, ear, and nose not only affects the appearance but also affects the normal function of organs. For example, the melanocytic nevus that grows on the edge of the eyelid will block the visual field and that which grows in the nasal vestibule will reduce nasal ventilation. When it is located in the EAC, it will cause ceruminal impaction. The clinical manifestations of the melanocytic nevus of the EAC are the localized black or tan bulging nodular masses found on the skin of the EAC [2]. Patients do not have any self-conscious symptoms in the early stages of the disease until they have symptoms of obstruction of the ear canal or hearing loss.
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10103-020-03034-x) contains supplementary material, which is available to authorized users. * Tianyu Zhang [email protected] 1
Department of Facial Plastic and Reconstructive Surgery, Eye and ENT Hospital of Fudan University, 83 Fenyang Road, Shanghai 200031, China
Although melanocytic nevus does not continue to grow with age, it will not disappear by itself but will continually affect the function of the affected organs. It is necessary to treat for affected individuals when there are obvious symptoms. Those patients with clinical symptoms need active treatment [3]. According to literature reports, surgical resection
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