Abstract A 73-year-old man with a history of marginal zone lymphoma was admitted to the emergency room for diplopia and ipsilateral headache. The Fluorine-18-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) demonstrated intense and symmetrical hypermetabolism of the cavernous sinuses. and hypermetabolic lesions diffusely in the lymph nodes and bones... https://foldlyers.shop/product-category/headers-idc/