Becker's Nevus on Face Misdiagnosed as Whiskers

Huiyi Yao; Wenzhong Xiang

doi:10.2147/CCID.S466776

Becker's Nevus on Face Misdiagnosed as Whiskers

Clin Cosmet Investig Dermatol. 2024 May 10:17:1071-1073. doi: 10.2147/CCID.S466776. eCollection 2024.

Authors

Huiyi Yao¹, Wenzhong Xiang²

Affiliations

¹ Department of Dermatology, Zhejiang Chinese Medical University, Hangzhou Third People's Hospital, Hangzhou, People's Republic of China.
² Department of Dermatology, Hangzhou Third People's Hospital, Hangzhou Third People's Hospital Affiliated to Zhejiang Chinese Medical University, Hangzhou, People's Republic of China.

Abstract

Becker's nevus (BN) is a kind of epidermal cutaneous hamartoma. A noticeable hyperpigmented patch with a big, unilateral, hyperpigmented macule and irregularly shaped borders is the manner in which BN often presents. In this case, a 16-year-old boy has asymptomatic dark brown colored follicular macule on the left side of the cheek shortly after birth. The lesions were initially inconspicuous but gradually became darker as time passed. The macules on some of them grew hair. This case of BN with apparent hypertrichosis on one side of the cheek, which made it challenging to make a differential diagnosis with whiskers. The primary point of differentiation is that the lesions of BN only appear unilaterally. On the other hand, the face has whiskers on both sides. Additionally, BN will show hyperpigmentation whereas whiskers do not. In conclusion, for its unusual clinical presentation, we believe that reporting this case may help dermatologists avoid misdiagnosing similar cases.

Keywords: Becker’s nevus; hypertrichosis; misdiagnosed; whiskers.

Publication types

Case Reports

Grants and funding

This work was supported by the Hangzhou biomedical and health industry development support project (2021WJCY159), and Hangzhou medical key discipline construction project (No [37]21-3).