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

Figure 5 Significant shrinkage of recurrent tumor in the nasal bridge with mucosal swelling in the first follow-up at 3 mo after proton beam therapy. A: Unequivocal reduction of tumor thickening in the nasal bridge, presented in axial plane; B: Pronounced tumor regression abutting the frontal skull base, presented in sagittal plane; C: Coronal presentation of shrinking tumor in the nasal bridge. Local recurrence marked with arrows.