The Tonsils Revisited: Review of the Anatomical Localization and Histological Characteristics of the Tonsils of Domestic and Laboratory Animals

Table 1

Presence and relative volume of the tonsils and lymphoid tissues in various domestic animals.

	Lingual tonsil	Palatine tonsil	Paraepiglottic tonsil	Pharyngeal tonsil	Tubal tonsil	Tonsil of the soft palate	NALT
Ox	++	+++	−	+++	+	+
Sheep	±	+++	+	+++	+	+
Goat	±	+++	±/−	+++	+	+
Pig	++	−	+	++	+	+++
Horse	++	+++	−	+	±	++
Dog	±	+++	−	++	−	−
Cat	±	+++	+/±	++	−	−
Rabbit	−	+++	−	−	−	−	++
Rat	−	−	−	−	−	−	+
Pigeon	−	−	−	+	−	−	+