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©2013 UpToDate ® Print Email Acanthosis nigricans Velvety, hyperpigmented plaques are present on the neck of this patient with acanthosis nigricans. Reproduced with permission from: Goodheart, HP. Goodheart's Photoguide of Common Skin Disorders, 2nd Edition, Lippincott Williams & Wilkins, Philadelphia 2003. Copyright © 2003 Lippincott Williams & Wilkins.
©2013 UpToDate ® Print Email Acanthosis nigricans Velvety, hyperpigmented plaques are present on the neck of this patient with acanthosis nigricans. Reproduced with permission from: Goodheart, HP. Goodheart's Photoguide of Common Skin Disorders, 2nd Edition, Lippincott Williams & Wilkins, Philadelphia 2003. Copyright © 2003 Lippincott Williams & Wilkins. Acanthosis nigricans Hyperpigmented velvety plaques are present in the axilla. Reproduced with permission from: www.visualdx.com. Copyright Logical Images, Inc. Acanthosis nigricans Close view of acanthosis nigricans on the posterior neck. Hyperpigmented velvety plaques are present. Reproduced with permission from: www.visualdx.com. Copyright Logical Images, Inc.