Fig. 5
From: Management of orbital invasion in esthesioneuroblastoma: 14 years’ experience
Comparison of MRI before and after treatment for a 43-year-old patient with ENB (stage of C) who received preoperative radiation plus surgery. (A) and (B) refer to axial MRI, and (C) and (D) refer to coronal MRI. 1, 2, and 3 refer to MRI before treatment, after preoperative radiation, and after surgery, respectively. MRI before treatment revealed a large mass on left nasal cavity and ethmoid sinus, which invaded the extraocular muscle of the left orbit (A1 arrowhead, B1 arrowhead). The tumor extended to left anterior skull base (C1 arrowhead, D1 arrowhead)