(Last Updated On: July 30, 2020)

Authors:Lim, Elize Maria Therese U., MDa
Carpio, Benedicto dL, MD, FPDSb
Regalado-Morales, Eileen, MD, FPDSb
Tanglao-De Guzman, Amelita, MD, FPDSb
Lapitan-Torres, Armelia, MD, FPDSb


Nevus comedonicus is a rare developmental anomaly of the pilosebaceous unit presenting as grouped dilated follicular orifices plugged with keratin. The comedones are usually arranged unilaterally along the lines of Blaschko. As of year
2000, only 200 cases have been reported.



1. Guldbakke KK, Khachemoune A, Deng A , Sina B. Naevus comedonicus: a spectrum of body involvement. Clin Exp Dermatol. 2007; 32 (5): 488-492

2. Cuda JD, Rangwala S, Taube JM. Fitzpatrick’s dermatology in general medicine. 9th Edition. Kang S, Amagai M, Bruckner AL, Enk AH, Margolis DJ, McMichael AJ, Orringer JS. New York, US: McGraw-Hill Education; 2019. Chapter 108, Benign epithelial tumors, hamartomas, and hyperplasias ; p. 1799-1812

3. Tchernev G, Ananiev J, Semkova K, Dourmishev, Shonlebe J, Wollina W . Nevus comedonicus: an updated review. Dermatol Ther (Heidelb). 2013. 3 (1):33–40

4. Najmi M, Sharp L, Kollipara R, Tarbox M. Improvement of nevus comedonicus after repeated microneedling. JAAD Case Rep. 2020 Jan 30;6(2):152-153.

5. Wen X, Li Y, Xiang MD, PhD; Li, Y, Hamblin, MR. A microneedling fractional radiofrequency device for the treatment of nevus comedonicus. Dermatol Surg. 2020; 46 (1): 148-150

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