A. Oncoprint of potentially actionable genomic alterations in patients with histiocytosis.
B. Pre- and post-treatment fused axial FDG-PET/CT images of a patient with Erdheim- Chester Disease with a BRAF V600E mutant tumor. Pre-treatment PET (left) reveals symmetric, bilateral, intra-medullary FDG uptake involving the femoral condyles. Repeat PET imaging following 12 months of vemurafenib demonstrated a complete metabolic response.
C. Pre- and post-treatment images of a patient with Erdheim-Chester Disease with a NRAS A59_E79 in-frame deletion. Pre-treatment image (Left image) demonstrating extensive skin lesions. Marked flattening and regression of skin lesions following 3 months of cobimetinib (Right image).
D. Swimmers plot of patients with histiocytosis treated with targeted therapies selected based on their MSK-IMPACT results. Arrows designate ongoing treatment. Stars indicate the patients highlighted in B (red star) and C (yellow star).