[Classical and atypical presentations of Galli-Galli disease].

Galli-Galli disease is a rare genodermatosis which classically presents with reticulate hyperpigmentation of the flexures and intertriginous areas. Recently, an atypical clinical presentation of Galli-Galli disease with monomorphic lentigo-like maculae and papules has been reported. We describe two cases of Galli-Galli disease, one patient presenting with a classical form and another with atypical skin lesions. In spite of the clinical differences, the histopathological examination - with filiform elongated rete ridges and acantholysis - confirmed the diagnosis of Galli-Galli disease in both cases.