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MRI T-1 weighted image of 13 y/o patient with Stage IV parameningeal alveolar RMS. (Left) image shows in a coronal plane a heterogeneous mass centered within the right ethmoid air cells (arrow) and superior nasal cavity mildly displacing the orbit. (Right) image—axial cut shows right neck lymphadenopathy shown as well with high uptake in PET scan image at the far right.
