A 30-year-old man was referred to our clinic with a 3-month history of swelling in the midline of the neck. The size of the swelling was stable and did not change at meal times. The patient's clinical history suggested that he was mostly fit and healthy, without any previous medical problems or head and neck trauma. Clinical examination revealed that there was an ill-defined, soft, nontender swelling over the submental region. None of the cervical lymph nodes were palpable. Computed tomography revealed a 1.8-cm cystlike lesion lying above the hyoid bone at the midline of the floor of the mouth (Figure 1and Figure 2).
Chou Y, Peng Y, Kang B. Radiology Quiz Case 1. Arch Otolaryngol Head Neck Surg. 2011;137(4):404. doi:10.1001/archoto.2011.40-a