case_images: PMC3829277_01
case_images: Mass lesion at left root of neck, unspecified origin (arrow)
case_images: IJNL-12-028-g001.jpg
case_images: PMC3829277_01_IJNL-12-028-g001.jpg
case_images: F0001
case_images: In sonography of the cervical region, there was a soft tissue mass in posterior triangle with the size of 63 x 46 mm with sharp borders, and it was approved by MRI (Figure 1). 