Between the plica triangularis and the surface of the palatine tonsils is a space known as the tonsillar fossa (or tonsillar sinus); in many cases, however, this sinus is obliterated by its walls becoming adherent.
Between the plica triangularis and the surface of the palatine tonsils is a space known as the tonsillar fossa (or tonsillar sinus); in many cases, however, this sinus is obliterated by its walls becoming adherent.