What is the most likely diagnosis in this 68-year-old male patient with a long pipe smoking history?

A 54-year-old male presents with a non-removable white lesion of at least five years duration that has recently begun to enlarge. Which of the following is the most appropriate next step?

Which ONE of the following statements is TRUE about this lesion?

The involved teeth are usually vital.

This area on the buccal mucosa was discovered on routine oral exam in this patient.   A similar lesion was also present on the buccal mucosa of the other side of the mouth. On examination, the lesion disappears when you stretch the buccal mucosa. What is the most likely diagnosis?

Patient reports mild discomfort and fluid discharge in the region. There is no history of trauma to the associated teeth. What is the most likely diagnosis for this lesion?

Is the following integral convergent or divergent?  If it is convergent, then evaluate it.  ∫ − 5 ∞ 1 x + 8 d x {“version”:”1.1″,”math”:”\int_{-5}^{\infty}\frac{1}{x+8}dx”}

Cells can undergo glycolysis under aerobic or anaerobic conditions.   

Although both Naegleria fowleri and Acanthamoeba are found in many water supplies, where they are especially abundant?

The vector of transmission for Trypanosoma brucei is: