Palliative treatment of Erdheim–Chester disease with radiotherapy: A Rare Cancer Network study

A retrospective study of the use of palliative external beam radiotherapy (EBRT) in nine patients with Erdheim–Chester disease was conducted through the Rare Cancer Network. Patients received EBRT for bone pain, brain infiltration, or retro-orbital involvement. EBRT typically provided short-term palliation, with later recurrence of symptoms in most cases.