Annual Meetings The Histiocyte Society holds annual scientific meetings in various locations throughout the world. Proposals for research studies about histiocytosis, as well as the results of completed studies, are shared during the presentations at these meetings. The annual meeting for 2009 held on September 15-17 in Bilbao, Spain was a great success.   We look forward to seeing you at the next annual meeting in Boston, United States on October 18-20, 2010.