Cutis verticis gyrata of the scalp in a patient with autosomal dominant insulin resistance syndrome.

Cutis verticis gyrata (CVG) is a rare disorder; it is characterized by thickening of the scalp which becomes raised to form ridges and furrows resembling the cerebral gyri. We report a case of CVG associated with the autosomal dominant insulin resistance syndrome. This syndrome is characterized by obesity, mild mental retardation, delayed puberty, acanthosis nigricans and hyperinsulinaemia. The association of CVG and autosomal dominant insulin resistance has not been previously described.