Despite the misery it causes, histiocytosis is too rare a disease to have generated substantial research in medical circles. Unfortunately, for every child or adult fighting for his or her life, the pain and suffering are just as severe for children and adults afflicted with other better known disorders receiving funding. For the children and adults battling these illnesses, there is now reason to hope. To ensure the research and information support work continues, we ask for your help, to complete the funding puzzle.