FIG 2. CT and MR images obtained 2 years after presentation.

A, Sagittal reconstructed high-resolution CT section. Note persistence of the mucosal thickening of the left maxillary sinus with regression of the palatine bony lysis (arrow).

B, Postcontrast T1-weighted image with fat saturation, coronal section. There is no enhancing soft-tissue mass involving the PPF or the inferior orbital fissure. Reduced signal intensity surrounds the pterygoid canal and the foramen rotundum (arrow).

C, Delayed (obtained 1 hour later) postcontrast T1-weighted image with fat saturation, axial section. Subtle enhancement of the PPF and foramen rotundum (arrow) exists compared with that of the normal contralateral side.