Proton beam therapy of periorbital sinonasal squamous cell carcinoma: Two case reports and review of literature

Figure 11 Magnetic resonance imaging prior to proton beam therapy. A: Naso-orbital nodular enhancement with lacking delimitation to the right eyeball; B: Tumor displacement of the right eye; C: Growing tumor invasion of the right maxillary sinus, turbinates and adjoining facial soft tissue; D: Coronal presentation of the right periorbital sinonasal cancer; E: Sagittal presentation of the sinonasal cancer with shift of the right eyeball upwards. Tumor marked with arrows.