Dermoscopic features of hypertrophic scars and keloids

Authors

  • Huda Hadi Hayyawi Department of Dermatology Center, Dermatology Center, Baghdad Teaching Hospital, Baghdad Medical City Complex, Ministry of Health, Baghdad, Iraq.
  • Hayder R Al-Hamamy Department of Dermatology, Iraqi Board for Medical Specializations, Ministry of Higher Education, Baghdad, Iraq.

DOI:

https://doi.org/10.66344/jpad.v33i3.2286

Keywords:

Dermoscopy, Kkeloid, Hypertrophic scar

Abstract

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

07.08.2023

Issue

Section

Original Articles

How to Cite

1.
Dermoscopic features of hypertrophic scars and keloids. J Pak Assoc Dermatol [Internet]. 2023 Aug. 7 [cited 2026 Aug. 9];33(3):991-6. Available from: https://www.jpad.com.pk/index.php/jpad/article/view/2286