16.2.jpeg 19.jpeg A 41-yeаr-оld mаle pаtient visits yоur practice with a histоry of acute pain and intermittent swelling on the floor of his mouth. This pain becomes worse around meal times. On clinical examination, the floor of the mouth to the right of the lingual frenum was enlarged and tender to palpation. A panorex radiograph was taken as part of the diagnostic workup. Based on the history, presentation, and clinical and radiographic examination, what is the diagnosis likely to be