Synchronous HPV-Related Cancer of Bilateral Tonsils Detected Using Transoral Endoscopic Examination with Narrow-Band Imaging

Figure 1

Endoscopic findings of palatine tonsils. The lesion could not be clearly visualized using conventional endoscopy ((a) right tonsil; (c) left tonsil). NBI enhanced an irregular surface and abnormal vascular proliferation ((b) right tonsil; (d) left tonsil).

(a)

(b)

(c)

(d)