A 25-year-old man comes to the office for evaluation of a painless mass in his mouth. The patient has had the mass for many years and has had no growth or other changes in the mass over that time. He has had occasional sinus infections and was in a motor vehicle accident several years ago in which he sustained a concussion, but he is otherwise healthy. The patient smokes a pack of cigarettes a day and drinks 2 or 3 alcoholic beverages on the weekends. Vital signs are normal. Examination of the mass is seen below: The mass is immobile, nontender, and has a hard consistency. The maxillary and frontal sinuses are nontender, and there is no cervical lymphadenopathy. Which of the following is the most likely cause of this patient's mass?

Question

A 25-year-old man comes to the office for evaluation of a painless mass in his mouth.  The patient has had the mass for many years and has had no growth or other changes in the mass over that time.  He has had occasional sinus infections and was in a motor vehicle accident several years ago in which he sustained a concussion, but he is otherwise healthy.  The patient smokes a pack of cigarettes a day and drinks 2 or 3 alcoholic beverages on the weekends.  Vital signs are normal.  Examination of the mass is seen below:  The mass is immobile, nontender, and has a hard consistency.  The maxillary and frontal sinuses are nontender, and there is no cervical lymphadenopathy.  Which of the following is the most likely cause of this patient's mass?

Quizplus · Accepted Answer

The Answer is A

A 25-Year-Old Man Comes to the Office for Evaluation of a Painless