Most patients present in the 7th decade of life, with females affected much more commonly than males (about a 4:1 ratio). The vast majority of the tumors present in the upper lip, although a few present in the palate or buccal (cheek) tissue as a slowly enlarging mass. It is curious that the tumor may show multifocality or multinodularity, a finding that should not be confused with invasion clinically or with malignancy.
Canalicular adenoma
Hidrocystoma
Choroidal fissure cyst
Pineal gland cyst
Ischiopatellar dysplasia
Vitreous bulge
Spiradenoma
Paradental cyst