What's Your Diagnosis on "Ollie": A 5 year old Bichon with a huge oral mass?

Fig. 1

Ollie (Fig. 1) is a 5 year old male neutered Bichon who presented with a 5 day history of lethargy, discomfort, and excessive drooling. Oral exam revealed a large, soft mass just lateral to the frenulum of the tongue on the right side. (Fig. 2).

Fig. 2

Fine needle aspirate revealed a tan colored, thick, mucoid fluid. (Fig. 3)

Fig. 3

What is your diagnosis? What other diagnostic tests should be performed?
What is your recommended treatment?

Answer later this week!