Concretions in human tonsils are not uncommon, but well-formed or large tonsilloliths are extremely rare. The lesion was frequently ignored, due to its insipient symptom and normal-looking overlying mucosa. Occasionally, these lesions had been detected incidentally during a routine dental radiographic examination, e.g. from images such as those acquired from panoramic or lateral skull views. Since radiography often does not clearly distinguish between tonsilloliths and other radiopaque lesions of the jaws, such equivocal results would often provide quite some difficulty for clinicians to arrive at an appropriate working diagnosis. Herein, we report on a case of giant bilateral tonsilloliths, using computed tomography to establish an accurate diagnosis. The Patient recovered uneventfully after surgical removal of the tonsillolith.