From suspected brain malignancy to Erdheim-Chester disease: the role of PET imaging and bone marrow biopsy in diagnosis
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Erdheim-Chester Disease (ECD) is an extremely rare non-Langerhans cell histiocytosis involving MAPK pathway mutations, notably BRAFV600E. We report a 60-year-old male with a history of BRAF-negative malignant melanoma and a new melanoma in situ, who presented ... ...
