RAS-associated autoimmune leukoproliferative disease (Orphanet_268114) (RALD) is a rare genetic disorder characterized by monocytosis, autoimmune cytopenias, lymphoproliferation, hepatosplenomegaly, and hypergammaglobulinemia. Also known as: ALPS type 4, ALPS type IV, Autoimmune lymphoproliferative syndrome type 4, Autoimmune lymphoproliferative syndrome type IV, RALD.