Waldeyer's tonsillar ring

The set of lymphatic tissue known as Waldeyer's tonsillar ring includes the adenoid tonsil, two tubal tonsils, two palatine tonsils, and the lingual tonsil.

O-MALT (organized mucosa-associated lymphatic tissue); specifically, the tonsils of Waldeyer's tonsillar ring are O-MALT.

Waldeyer's tonsillar ring (also pharyngeal lymphoid ring or Waldeyer's lymphatic ring) is an anatomical term collectively describing the annular arrangement of lymphoid tissue in the pharynx.

He is also remembered in two macroanatomical structures of the human body which were named after him: Waldeyer's tonsillar ring (the lymphoid tissue ring of the naso- and oropharynx) and Waldeyer's glands (of the eyelids).

The tubal tonsil is one of the four main tonsil groups comprising Waldeyer's tonsillar ring, which includes the Palatine tonsil, the Lingual tonsil, the Pharyngeal tonsil, and the Tubal tonsil.