If the tonsil is not present, biopsy of the tonsillar fossa should be performed.

Two hours after the operation he developed a reactionary haemorrhage from the right tonsillar fossa and was returned to the theatre.

This structure covers the tonsillar fossa.

Second pharyngeal pouch develops differently from the first one mainly because most of it disappears, leaving the tonsillar fossa(Rohen).

Lymphoepitheliomas (e.g., tonsillar fossa).

These cancers can progress across a broad region including the lateral soft palate, retromolar trigone and buccal mucosa, and tonsillar fossa.

They are scattered over the base of the tongue, the palatoglossal and palatopharyngeal arches, the tonsillar fossa, uvula and posterior pharyngeal wall.

Tonsillectomy is a 3,000-year-old surgical procedure in which, traditionally, each tonsil is removed from a recess in the side of the pharynx called the tonsillar fossa.

Lesions of the tonsillar fossa may be either exophytic or ulcerative and have a pattern of extension similar to those of the anterior tonsillar pillar.

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.

The anterior wall consists of the base of the tongue and the epiglottic vallecula; the lateral wall is made up of the tonsil, tonsillar fossa, and tonsillar (faucial) pillars; the superior wall consists of the inferior surface of the soft palate and the uvula.