Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Case Reports
. 2024 May 18:17:1147-1151.
doi: 10.2147/CCID.S458753. eCollection 2024.

Congenital Triangular Alopecia: A Case of Effective Response with 5% Topical Minoxidil in a Male Adolescent

Frizam Dwindamuldan Sutisna  1 , Srie Prihianti Gondokaryono  1 , Reiva Farah Dwiyana  1 , Raden Mohamad Rendy Ariezal Effendi  1 , Nisrina Tache  1 , Rafithia Anandita  1
Affiliations
Case Reports

Congenital Triangular Alopecia: A Case of Effective Response with 5% Topical Minoxidil in a Male Adolescent

Frizam Dwindamuldan Sutisna et al. Clin Cosmet Investig Dermatol. .

Abstract

Congenital triangular alopecia (CTA) is a rare entity of non-cicatricial alopecia characterized by triangular or oval-shaped alopecia patches on the frontotemporal region of the scalp. Few therapeutic options exist, and there is currently no effective treatment except for hair transplantation. We report the case of an adolescent boy with CTA who was treated with 5% topical minoxidil solution. During therapy, the patient showed improvement in the form of the appearance of terminal hairs, which started to show after two months of treatment. After eight months of treatment, the affected area was fully covered with dense terminal hairs. The patient did not report any adverse reactions/side effects.

Keywords: Congenital triangular alopecia; minoxidil; trichoscopy.

PubMed Disclaimer

Conflict of interest statement

The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
(A) Triangular patch of noncicatrical alopecia 9 cm x 6 cm over right frontotemporal scalp. (B) Growth of terminal hair in the lesion after 8th month of therapy.
Figure 2
Figure 2
Trichoscopy finding (A) Short and thin vellus hair (blue arrow), and empty follicles (red arrow). (B) Vellus hair (blue arrow) surrounded by terminal hair (yellow arrow) and empty follicle (red arrow) after 8th month of therapy.
See this image and copyright information in PMC

References

    1. Yin Li V, Yesudian P. Congenital triangular alopecia. Int J Trichol. 2015;7(2):48. doi:10.4103/0974-7753.160089 - DOI - PMC - PubMed
    1. Jain SP, Bansode DS, Deshmukh A. Temporal triangular alopecia: a rare entity. Clin Dermatol Rev. 2023;7(1):87–88. doi:10.4103/cdr.cdr_51_21 - DOI
    1. Abuawad YG. Triangular temporal alopecia - Two Case reports, dermoscopy and review. J Dermatol Cosmetol. 2018;2(1):34–36. doi:10.15406/jdc.2018.02.00034 - DOI
    1. Viswanath V, Kalambe V, Sanap D. Congenital triangular alopecia: clinical and dermoscopic differentials. Indian J Paediatr Dermatol. 2019;20(1):75. doi:10.4103/ijpd.IJPD_57_18 - DOI
    1. Patel D, Tandel J, Nair P. Congenital triangular alopecia - A case report. Int J Trichol. 2020;12(2):89. doi:10.4103/ijt.ijt_4_20 - DOI - PMC - PubMed

Publication types