Anyone here who has, or knows anyone who has been diagnosed with Langerhans Cell Histiocytosis (LCH for short). If it was diagnosed some time ago it might have been called Histiocytosis X or Eosinohillic Granuloma. It’s a rare disease which has recently been reclassified as a type of cancer, although it has a strong autoimmune component. It mainly affects children but adults can also have it