case_images: PMC6993817_01
case_images: Clinical presentation before cetuximab (
  a) and after six (
  b) and 12 weeks of therapy (
  c).
case_images: f1000research-8-23781-g0000.jpg
case_images: PMC6993817_01_f1000research-8-23781-g0000.jpg
case_images: f1
case_images: The patient reported intermittent pain and bleeding ( Figure 1).
case_images: CT scan performed at baseline (
  a), after six (
  b) and 12 weeks of therapy (
  c), highlighting the anterior-posterior diameter of the tumor.
case_images: f1000research-8-23781-g0001.jpg
case_images: PMC6993817_01_f1000research-8-23781-g0001.jpg
case_images: f2
case_images: A stage III-disease (T3N0M0, Figure 2a)  advised the use of anti-PD-1 therapy. Follow-up assessment with periodic CT at three ( Figure 2b and 2c) and six months documented stable locally advanced disease.