Articles Tập 67 Số CĐ13-HNKH Bệnh viện 19-8 17/09/2026

CLINICAL AND PARACLINICAL CHARACTERISTICS OF HALO NEVUS AT THE NATIONAL HOSPITAL DERMATOLOGY AND VENEREOLOGY

Tran Thi Nhi Suong, Le Huu Doanh, Vu Huu Luong, Do Thi Thu Hien
DOI: 10.52163/yhc.v67iCD13.6571
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Abstract

Objective: To describe the clinical and paraclinical characteristics of halo nevi at the National Hospital of Dermatology and Venereology. Subjects and Methods: A descriptive case series study using convenience sampling was conducted on 51 patients diagnosed with halo nevi at the National Hospital of Dermatology and Venereology between August 2025 and June 2026. Results: The mean age was 17.78 ± 9.29 years, and the mean age of onset was 14.94 ± 9.24 years; the under-30 age group accounted for the highest proportion (90.2%). The gender distribution was 64.71% male and 35.29% female. Lesions were distributed on the trunk (45.10%) and the face (33.33%). The rate of comorbid vitiligo was 76.47%. Under Wood's lamp examination, 96.08% of halo nevus lesions showed a clearly defined white halo boundary against the surrounding healthy skin. Dermoscopy revealed a typical pattern in 90.2% of cases, characterized by a symmetrical, structureless white halo surrounding a central nevus. Histopathological examination in all 15 tested cases showed the presence of pigment-laden macrophages. Among 46 cases undergoing immunological testing, elevated FT3 was found in 32.61%, elevated FT4 in 4.35%, and elevated TSH in 78.26%; elevated TRAb levels were observed in 24 out of 42 cases (57.15%). Conclusion: Halo nevi primarily affect young people and mainly impact the patient's aesthetic appearance. Therefore, appropriate examination, monitoring, and intervention measures are necessary to improve the patient's quality of life and ensure close management.

Keywords
halo nevus, depigmented halo, clinical & paraclinical characteristics
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