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Fighting for a Cure Dedicated to addressing the unique needs of patients and families dealing with the effects of histiocytic disorders while leading the search for a cure. Fighting for a Cure Dedicated to addressing the unique needs of patients and families dealing with the effects of histiocytic disorders while leading the search for a cure. I am. Newly Diagnosed A Patient or Caregiver A Researcher A Healthcare Professional What We Do The Histiocytosis Association is a global nonprofit organization dedicated to addressing the unique needs of patients and families dealing with the effects of histiocytic disorders while leading the search for a cure.