the sites involved were : waldeyer 's ring-103 patients ( tonsil-60 , nasopharynx-25 , base of tongue-18 ) , and extralymphatic sites-53 patients ( salivary gland-20 , paranasal sinus-20 , oral cavity-10 , and larynx-3 ) .
C0040421
tonsil
C0226896
oral cavity