Study Objective: This is an ongoing biobank and clinical database at Mayo Clinic and the University of Iowa, Rochester that will enroll patients diagnosed with any histiocytic cancer, including Erdheim-Chester disease, and collect and store tissue/blood samples for current and future studies.  Our goal is to study these rare cancers in detail by means of various tests (genetic, inflammatory markers, other lab tests) that can improve our understanding and help identify new treatments.

Principal Investigator: Thomas E. Witzig, MD, James E. Cerhan, MD, and Ronald S. Go, MD

Contact Information:  Ronald S. Go, (507) 284-2511, email: Go.Ronald@mayo.edu

Requested Patient Involvement: Currently enrolling patients with all histiocytic cancers (Erdheim-Chester disease, Langerhans Cell histiocytosis, Rosai-Dorfman disease)

ClinicalTrials.gov Identifier: NCT02736357