Figure 1From: Excellent response of intramedullary Erdheim-Chester disease to vemurafenib: a case reportPathology. Serial sections of the patient’s vertebral trephine biopsy showing normal (black arrows) and affected (white arrows) bone marrow. Sections have been stained with hematoxylin-eosin (A), CD1a (B), CD3 (C) and CD68 (D).Back to article page