An unusual tonsillolithiasis in a patient with chronic obstructive sialoadenitis.

Concretions in the tonsil or peritonsillar area are an infrequent entity in clinical practice. Some patients have no symptoms or they can present with fetor oris or odynophagia. The lesions are often detected incidentally during radiographic examination. This pathology can be related to lithiasis in other regions of body. The authors describe a tonsillolith accidentally detected in a patient with a lithiasis of left submandibular gland. We review published cases of tonsilloliths and analyse the causes of stone formation in peritonsillar and tonsil regions.