title: HISTIOCYTOSIS X IN AN ADULT.
mesh_terms: D000328:Adult; D001932:Brain Neoplasms; D040181:Genetic Diseases, X-Linked; D006646:Histiocytosis, Langerhans-Cell; D006801:Humans; D007943:Leukemia, Hairy Cell; D008206:Lymphatic Diseases; D009918:Orbital Neoplasms; D012186:Retroperitoneal Neoplasms; D016511:Severe Combined Immunodeficiency
keywords: BRAIN NEOPLASMS; ORBITAL NEOPLASMS; RETICULOENDOTHELIOSIS; RETROPERITONEAL NEOPLASMS