학술논문
TRISTAR VESSELS: A NEWLY DESCRIBED DERMOSCOPIC VESSEL PATTERN OF MIESCHER'S NEVUS
Document Type
Academic Journal
Source
Journal of Basic and Clinical Health Sciences. January 2023, Vol. 7 Issue 1, p1, 9 p.
Subject
Language
English
ISSN
2458-8938
Abstract
INTRODUCTION Miescher's nevus (MN) is the major subtype of dermal melanocytic nevus that occurs most commonly on the head and neck. It usually presents as a light brown or skin [...]
Purpose: Even though Miescher's nevus (MN) is very common in general population, little is known about the validity of dermoscopic criteria to differentiate it from other papulonodular lesions located on the head and neck. The aim of this study is to evaluate the dermoscopic findings of Miescher nevi (MNs) on the head and neck in patients aged [greater than or equal to]40 years. Material and Methods: In this descriptive cross-sectional study, a total of 170 MNs in 94 patients were evaluated by using polarized light dermoscopy. Frequencies of dermoscopic findings in MNs were determined using Statistical Package for Social Sciences for Windows 15.0. Results: The most frequently detected dermoscopic pattern in MNs was globular pattern (64.5%), less often homogeneous (32.4%) or cobblestone pattern (2.9%). Globules were observed in 75.3% of MNs and dots were seen in 12.4%. They frequently had skin-colored (87.1%) or light-brown (49.4%) homogeneous structureless areas. Elongated comma vessels (47.1%) were the most common vascular findings. Although comma vessels (33.5%) and linear vessels (4.7%) were also observed, 11.2% of MNs presented 'tristar vessels' (a newly described vascular pattern) that showed regular 'tristar like ramifications' in the distal part of the vessels. Conclusion: Firstly identified 'tristar vessel pattern' is a dermoscopic description of MNs that can be a useful clue to differential diagnosis. Keywords: Miescher's nevus, dermoscopy, vascular pattern, tristar vessels, arborizing vessel
Purpose: Even though Miescher's nevus (MN) is very common in general population, little is known about the validity of dermoscopic criteria to differentiate it from other papulonodular lesions located on the head and neck. The aim of this study is to evaluate the dermoscopic findings of Miescher nevi (MNs) on the head and neck in patients aged [greater than or equal to]40 years. Material and Methods: In this descriptive cross-sectional study, a total of 170 MNs in 94 patients were evaluated by using polarized light dermoscopy. Frequencies of dermoscopic findings in MNs were determined using Statistical Package for Social Sciences for Windows 15.0. Results: The most frequently detected dermoscopic pattern in MNs was globular pattern (64.5%), less often homogeneous (32.4%) or cobblestone pattern (2.9%). Globules were observed in 75.3% of MNs and dots were seen in 12.4%. They frequently had skin-colored (87.1%) or light-brown (49.4%) homogeneous structureless areas. Elongated comma vessels (47.1%) were the most common vascular findings. Although comma vessels (33.5%) and linear vessels (4.7%) were also observed, 11.2% of MNs presented 'tristar vessels' (a newly described vascular pattern) that showed regular 'tristar like ramifications' in the distal part of the vessels. Conclusion: Firstly identified 'tristar vessel pattern' is a dermoscopic description of MNs that can be a useful clue to differential diagnosis. Keywords: Miescher's nevus, dermoscopy, vascular pattern, tristar vessels, arborizing vessel