A 63-YEAR-OLD man noted 2 years earlier that his maxillary denture had become ill fitting. He was subsequently diagnosed and treated for a palatal cyst, without difficulty or sequelae. Approximately 6 months before his most recent admission, he again noted an inability to wear his maxillary denture, which prompted this evaluation.
On examination, a fluctuant, painless palatal mass was observed. The mass, which measured approximately 4 cm in greatest dimension, was covered by intact and unremarkable mucosa. A computed tomogram of the maxillofacial structures was obtained (Figure 1 and Figure 2).