Figure 2
From: High-dose proton beam therapy for sinonasal mucosal malignant melanoma
Overall survival (A), disease-free survival (B), and local disease-free (C) rates of patients who underwent proton beam therapy for sinonasal mucosal melanoma. The overall survival curves of patients with differentiated morphology were compared with those of patients with undifferentiated morphology and other morphologies (dotted line), and cellular morphology was found to be a significant prognostic factor (D).