Can you make the diagnosis?
A four-year-old girl presented with a single, smooth-surfaced, well-demarcated, grayish nodule on the right side of the ventral surface of the tongue. It was described initially as small (4 X 4 mm) and fluctuant, but over a six to eight week period it progressed to a 1 X 1 cm firm mass. The overlying mucosa was distended and smooth with no evidence of ulceration.
Select the Correct Diagnosis