Swelling under the tongue

A 19 years YouTuber came into the clinic complaining of swelling below her tongue. It started gradually, two months ago and is not painful. Getting worse and causing difficulty in talking and chewing. Her physical examination revealed blue, fluctuant swellings lateral to the midline in the lower mouth, as shown in the image. There is no cervical lymphadenopathy. Her family history and past medical history of swelling were non-contributory. Vital signs are normal, and she denies weight loss and night sweating. Based on the patient's history and physical examination,