Figure 18 Legend

Figure 18: Pyriform Sinus Cancer

Figure 18A

A. Axial schematic illustration of a pyriform sinus carcinoma. (Reprinted with permission from reference 25)

Figure 18B

Figure 18C

B & C. Schematic illustrations demonstrate the ipsilateral (B) and contralateral (C) nodal groups most likely at risk for developing nodal metastases from pyriform sinus carcinoma. On the ipsilateral side, Groups II and III are at greatest risk for developing nodal metastases. There is less than a 15% likelihood of metastases in the contralateral neck. (Reprinted with permission from reference 26)