Indian Journal of Dermatology
E-IJDŽ - ORIGINAL ARTICLE
Year
: 2021  |  Volume : 66  |  Issue : 4  |  Page : 445-

Dermoscopic Evaluation of Longitudinal Melanonychia in Children: A Prospective Study


Mahshid Sadat Ansari, Hamidreza Mahmoudi, Ali Sadeghinia, Shadi Azizzadeh-Roodpishi, Alireza Ghanadan, Maryam Daneshpazhooh 
 Department of Dermatopathology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran

Correspondence Address:
Ali Sadeghinia
Autoimmune Bullous Diseases Research Center, Department of Dermatology, Razi Hospital, Vahdat-E-Eslami St., P.O. Box: 1119663911, Tehran
Iran

Background: Longitudinal melanonychia (LM) is a worrisome sign in both children and adults. Nail apparatus melanoma (NAM) can be related to LM, but it is very rare in children. Dermoscopic signs of benign lesions in children can be similar to melanoma; therefore, it is important to review dermoscopy of LM in children to make the best decision in performing biopsy. Aims: Biopsy taking is very challenging in LM in children. Most lesions are benign in children. The aim of this study was to review dermoscopic signs of LM in children and compare them with adults. Materials and Methods: In this prospective study a total of 108 LM (35 children and 73 adults) were undergone dermoscopy of LM. Dermoscopic features were compared in children and adults; both for benign lesions proven by biopsy or follow up and melanomas diagnosed histopathologically. Results: Black background, black band color, band color diversity and pseudo-Hutchinson's sign were more frequent in children in comparison with benign adult melanonychia. Some children's dermoscopic features of LM such as broad band width, Band color diversity, Hutchinson's sign, gray band color, asymmetry of pattern, and regression were similar to melanoma, but we did not find any melanoma by biopsy and/or follow up among children. We also detected the newly described "zigzag" pattern in four children. Conclusion: Dermatologists should consider all dermoscopic features of a lesion, dermoscopic sign changes in follow-up, medical, and familial history of the patient in deciding to perform biopsy of LM in children.


How to cite this article:
Ansari MS, Mahmoudi H, Sadeghinia A, Azizzadeh-Roodpishi S, Ghanadan A, Daneshpazhooh M. Dermoscopic Evaluation of Longitudinal Melanonychia in Children: A Prospective Study.Indian J Dermatol 2021;66:445-445


How to cite this URL:
Ansari MS, Mahmoudi H, Sadeghinia A, Azizzadeh-Roodpishi S, Ghanadan A, Daneshpazhooh M. Dermoscopic Evaluation of Longitudinal Melanonychia in Children: A Prospective Study. Indian J Dermatol [serial online] 2021 [cited 2023 Jan 30 ];66:445-445
Available from: https://www.e-ijd.org/article.asp?issn=0019-5154;year=2021;volume=66;issue=4;spage=445;epage=445;aulast=Ansari;type=0