Other common symptoms, such as lymphadenopathy and hepato-splenomegaly, or specific symptoms, such as retroperitoneal fibrosis (SLC29A3-associated histiocytosis-lymphadenopathy–plus syndrome) or sideroblastic anemia (TRNT1-associated sideroblastic anemia with B-cell immunodeficiency, periodic fever, and developmental delay), were also reported. The gene discussed is SLC29A3; the disease is Histiocytosis.