Laboratory for Molecular Diagnostics
Center for Nephrology and Metabolic Disorders
Acanthosis nigricans is a grayish brown hyperpigmentation of the skin in body folds such as neck, the armpits, groin, and navel.
| Alström syndrome | |
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In Alstrom syndrome besides of obesity and diabetes an acanthosis nigricans can be seen. |
| Crouzon syndrome | |
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Among several other dysmorphic features acanthosis nigricans is typical of Crouzon syndrome, in particular when caused by FGFR3 mutations. |
| Diabetes mellitus with insulin resistance and acanthosis nigricans | |
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All types of insulin resistance caused by mutations of the insulin receptor gene are accompanied by acanthosis nigricans. |
| Leprechaunism | |
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Insulin resistance in leprechaunism is accompanied by acanthosis nigricans. |
| Lipodystrophy | |
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Generalized and partial lipodystrophy may be accompanied by acanthosis nigricans. |
| Generalized lipodystrophy | |
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Generalized lipodystrophy is accompanied by acanthosis nigricans. |
| Familial partial lipodystrophy type 2 | |
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Partial lipodystrophy 2 is accompanied by acanthosis nigricans. |
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