PROGRESSIVE HEMIFACIAL ATROPHY - HISTORICAL REVIEW AND ACTUAL FEATURERELATED TO A NEW CLASSIFICATION OF FACIAL HYPOPLASIA AND ATROPHY

Progressive hemifacial atrophy, described initially by Parry and Rombe rg, is reviewed in terms of etiopathogenesis and clinical features. Th e purpose is to clarify the variegated nature of this syndrome and to distinguish it from other forms of atrophy affecting the face, princip ally the soft tissues. The authors propose a new general classificatio n of hypoplasia and atrophy of the face.