A rare disorder characterized by gingival fibromatosis, coarse facial appearance, and absence or hypoplasia of nails or terminal phalanges of hands and feet. The disease is Monarch Disease Ontology term MONDO_0000200 (Zimmermann-Laband syndrome). Also known as: Laband syndrome, ZLS, Zimmerman Laband syndrome, Zimmermann-Laband syndrome type 1, gingival fibromatosis-hepatosplenomegaly-other anomalies syndrome.