Fig. 6From: Extracutaneous melanomas: a primer for the radiologistA 73-year-old male with metastatic sinonasal melanoma on treatment with BRAF and MEK inhibitors. a Coronal contrast-enhanced CT image shows a homogeneous mass lesion involving the right nasal cavity (arrow). b Sagittal contrast-enhanced CT image before the start of chemotherapy shows a large small bowel metastatic lesion (arrow). c Sagittal contrast-enhanced CT image after four cycles of chemotherapy shows a significant interval decrease in the size of the metastatic lesion and new left moderate pleural effusion (arrowhead)Back to article page