Dermoscopic features of hypertrophic scars and keloids
DOI:
https://doi.org/10.66344/jpad.v33i3.2286Keywords:
Dermoscopy, Kkeloid, Hypertrophic scarAbstract
Objective The present study was conducted to outline dermoscopic features that help to differentiate between keloids and hypertrophic scars.
Methods The study is a cross-sectional observational study done at the Center of Dermatology/ Medical City, Baghdad. The study was done through December 1st 2020 to August 1st 2021 on a convenient sample of 95 patients; (33) with hypertrophic scars and (62) with keloids. History and clinical examination were done for each patient. Clinical photos were captured by using an iPhone 8 (12 megapixels) camera. Dermoscopic study was done using Handyscope classic from Fotofinder.
Results Following features were noted pigment color in keloids was pink (43.5%), while in hypertrophic scar it was brown (69.7%) (p value =0.001). The most frequent vessel shape in keloids was arborizing (46.8%), arborizing/ linear (14.5%).While in hypertrophic scars the most frequent vessel shape was dotted (39.4%), followed by linear (21.2%), (p value = 0.001).
Conclusion The vessels shape and distribution as well as the pigment was different in keloids compared to hypertrophic scars (statistically significant) which help to differentiate the 2 in clinically suspicious lesions.
References
1. Zalaudek I, Kreusch J, Giacomel J, Ferrara G, Catricala C, Argenziano G. How to diagnose nonpigmented skin tumors: a review of vascular structures seen with dermoscopy: part I. Melanocytic skin tumors. J Am Acad Dermatol. 2010;63(3):361-74.
2. Argenziano G, Soyer HP, Chimenti S, Talamini R, Corona R, Sera F, Binder M, Cerroni L, De Rosa G, Ferrara G, Hofmann-Wellenhof R. Dermoscopy of pigmented skin lesions: results of a consensus meeting via the Internet. J Am Acad Dermatol. 2003;48(5):679-93.
3. van den Broek LJ, Limandjaja GC, Niessen FB, Gibbs S. Human hypertrophic and keloid scar models: principles, limitations and future challenges from a tissue engineering perspective. Exp Dermatol. 2014;23(6):382-6.
4. Yoo MG, Kim IH. Keloids and hypertrophic scars: characteristic vascular structures visualized by using dermoscopy. Ann Dermatol. 2014;26(5):603-9.
5. Wei Y, Li-Tsang CW, Luk DC, Tan T, Zhang W, Chiu TW. A validation study of scar vascularity and pigmentation assessment using dermoscopy. Burns. 2015;41(8):1717-23.
6. Abdallah M, Yassin M, Saber N. Dermoscopic features of keloid versus hypertrophic scar. Egypt J Hosp Med. 2018;70(4):622-4.
7. Jin H, Yang MY, Kim JM, Kim GW, Kim HS, Ko HC, Kim BS, Kim MB. Arborizing vessels on dermoscopy in various skin diseases other than basal cell carcinoma. Ann Dermatol. 2017;29(3):288-94.
8. Lee JY, Yang CC, Chao SC, Wong TW. Histopathological differential diagnosis of keloid and hypertrophic scar. Am J Dermatopathol. 2004;26:379-84.
Downloads
Published
Issue
Section
License
Copyright (c) 2023 Huda Hadi Hayyawi, Hayder R Al-Hamamy

This work is licensed under a Creative Commons Attribution 4.0 International License.
Submission declaration
Authors retain the copyright to their work and grant the 'Journal of Pakistan Association of Dermatologists (JPAD)' the right of first publication under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. This license allows others to share, adapt, and reuse the work for any purpose, including commercial use, as long as appropriate credit is given to the original authors and the journal.
By submitting a manuscript, authors confirm that the work has not been published previously (except as an abstract, lecture, or academic thesis), is not under review elsewhere, and has been approved by all authors and relevant authorities. Once accepted, the article will be openly accessible under the CC BY 4.0 license, ensuring wide dissemination and reuse with proper attribution.






