Halo nevus is also known as Sutton nevus or perinevoid vitiligo. Halo nevi are benign melanocytic nevi surrounded by a peripheral rim of depigmentation. The depigmented ring is believed to be due to a secondary localized immune response to regional melanocytes.
Clinically, halo nevi are characterized by a circular area of depigmented skin surrounding a central nevus of hyperpigmented skin. They are most often seen in teenagers. The pigmented nevus may eventually involute completely, leaving only the patch of depigmentation.
Halo nevus in Adult
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Important News & Links
Synopsis
Codes
ICD10CM:
D22.9 – Melanocytic nevi, unspecified
SNOMEDCT:
398028009 – Halo nevus
D22.9 – Melanocytic nevi, unspecified
SNOMEDCT:
398028009 – Halo nevus
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- A halo phenomenon has been reported surrounding melanomas in adults; halo nevi are typically found in children and adolescents and are multiple in number.
- Dysplastic nevus
- Basal cell carcinoma
- Molluscum contagiosum
- Spitz nevus
- Vitiligo
- Lichen planus
Best Tests
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Management Pearls
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Therapy
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Drug Reaction Data
Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.
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References
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Last Updated:01/17/2022
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Halo nevus in Adult