Unusual facial lesions in H syndrome.

H Syndrome is a rare genodermatosis. It may include facial involvement such as: facial telangiectasia, both hypo- and hyperpigmented lesions, hirsutism, swollen cheeks due to subcutaneous infiltration and eczematous lesions. We describe a new facial phenotype with dermoscopic and histological features in the spectrum of non-Langerhans cell histiocytosis.