Figure 1.

Radiographic appearance of the primary lesion.
A = diffuse opacity of the right nasal fossa and maxillary sinus, with destruction of the medial and inferior walls of the maxillary sinus, and thinning of the pavement of the orbita.
B = axial computed tomography showing the first recurrence in the maxillary sinus, which occurred 20 years after the surgical treatment of the tumour.
C = after conservative treatment the tumour recurred in the right orbit.
D = tumour recurred in hard palate.
E = magnetic resonance imaging showing a recurrence in the infratemporal fossa.
F = single metastasis in the right temporal area of the brain.