Hyperpigmented Plaques at Insulin Injection Sites

A woman in her 50s with type 2 diabetes presented with hyperpigmented plaques on her abdomen. Physical examination revealed symmetric, hyperkeratotic, verrucous plaques with thick, brownish, firmly adhered crusts. What is your diagnosis?

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Publication Details

Journal
JAMA Dermatology
Published
2026-09-16
DOI
https://doi.org/10.1001/jamadermatol.2026.2786
Primary Topic
Skin Diseases and Diabetes
Type
article
Field-Weighted Citation Impact
0.00
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article

Hyperpigmented Plaques at Insulin Injection Sites

Jhen‐Yu Jwo, Hao-Jui Weng, Wei-Hwa Lee
JAMA Dermatology
Skin Diseases and Diabetes
article

Hyperpigmented Plaques at Insulin Injection Sites

Jhen‐Yu Jwo, Hao-Jui Weng, Wei-Hwa Lee
article en

Abstract

A woman in her 50s with type 2 diabetes presented with hyperpigmented plaques on her abdomen. Physical examination revealed symmetric, hyperkeratotic, verrucous plaques with thick, brownish, firmly adhered crusts. What is your diagnosis?

JAMA Dermatology
Taipei Medical University-Shuang Ho Hospital (TW), Taipei Medical University (TW)
Openalex Percentile: Top 9%
Skin Diseases and Diabetes
DOISourceOpenAlex
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Hyperpigmented Plaques at Insulin Injection Sites — Jhen‐Yu Jwo, Hao-Jui Weng, et al. · JAMA Dermatology (2026) | TGRS Research Map | TGRS