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Aplasia cutis congenita and associated disorders: an update

We present an update of disorders in which aplasia cutis congenita is a feature. Localization of the lesion, important other features, and possible etiology are tabulated. Disorders are classified as chromosomal, monogenic, teratological/exogenous, and unknown. Points of particular interest in history taking and examination of patients with aplasia cutis congenita are presented.