Abstract
White or yellowish deposits observed in the throat are most commonly tonsilloliths, also known as tonsil stones. These are calcified or semi-calcified biofilm formations that develop within the crypts of the palatine tonsils. Although generally benign, they may contribute to halitosis and local discomfort. This article reviews their formation, composition, clinical presentation, and management.
1. Introduction
The palatine tonsils contain multiple invaginations called tonsillar crypts, which increase surface area for immune defense. However, these crypts can also trap debris, leading to the formation of tonsilloliths in some individuals.
2. Pathophysiology
Tonsil stones develop through a multi-step process:
2.1 Debris Accumulation
Food particles, epithelial cells, and mucus become trapped in tonsillar crypts.
2.2 Bacterial Colonization
Anaerobic bacteria proliferate in these retained materials, forming a biofilm.
2.3 Mineralization
Over time, calcium salts (such as calcium phosphate and carbonate) are deposited, leading to hardening and calcification.
