Acanthosis Nigricans
- PMID: 28613711
- Bookshelf ID: NBK431057
Acanthosis Nigricans
Excerpt
Acanthosis nigricans is a velvety, darkening of the skin that usually occurs in intertriginous areas. This hyperpigmentation has poorly defined borders, usually occurs in skin fold areas, such as the back of the neck, axilla, and groin, and may include thickening of the skin. Acanthosis nigricans is most commonly associated with diabetes and insulin resistance, but rarely it can be a sign of internal malignancy. It can also occur with hormone disorders and with the use of certain medications like systemic glucocorticoids and oral contraceptives.
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Sections
- Continuing Education Activity
- Introduction
- Etiology
- Epidemiology
- Pathophysiology
- Histopathology
- History and Physical
- Evaluation
- Treatment / Management
- Differential Diagnosis
- Prognosis
- Complications
- Consultations
- Deterrence and Patient Education
- Enhancing Healthcare Team Outcomes
- Review Questions
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References
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- Smid CJ, Modaff P, Alade A, Legare JM, Pauli RM. Acanthosis nigricans in achondroplasia. Am J Med Genet A. 2018 Dec;176(12):2630-2636. - PubMed
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- González-Saldivar G, Rodríguez-Gutiérrez R, Treviño-Alvarez AM, Gómez-Flores M, Montes-Villarreal J, Álvarez-Villalobos NA, Elizondo-Plazas A, Salcido-Montenegro A, Ocampo-Candiani J, González-González JG. Acanthosis nigricans in the knuckles: An early, accessible, straightforward, and sensitive clinical tool to predict insulin resistance. Dermatoendocrinol. 2018;10(1):e1471958. - PMC - PubMed
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- Hermanns-Lê T, Scheen A, Piérard GE. Acanthosis nigricans associated with insulin resistance : pathophysiology and management. Am J Clin Dermatol. 2004;5(3):199-203. - PubMed
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- Fukuchi K, Tatsuno K, Matsushita K, Kubo A, Ito T, Tokura Y. Familial acanthosis nigricans with p.K650T FGFR3 mutation. J Dermatol. 2018 Feb;45(2):207-210. - PubMed
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