Erdheim–Chester disease is a rare form of non-Langerhans cell histiocytosis characterized by foamy histiocyte infiltration of the skeleton and viscera. A case of Erdheim–Chester disease that was initially mistaken for Ormond's disease is presented with a discussion of the tests required to differentiate between the two diagnoses.
- Konstanze Loddenkemper
- Bimba Hoyer
- Gerd-Rüdiger Burmester
