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FIG 2. Case 2.
A, Axial unenhanced CT scan image shows a large homogeneous mass without calcifications destroying the lamina papiracea and the nasal septum.
B, Coronal T2-weighted imaging with parameters 4000/91/3 (TR/TE/excitations) shows stretching of the right optical nerve by the tumor, which shows intermediate signal intensity with cystic areas.
C and D, Six months after chemo- and radiotherapy, T1-weighted images before and after contrast material administration (parameters 480/12/2 [TR/TE/excitations]) show large necrotic intratumoral areas.
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