### Patient: Doctor, I have recently noticed a small spot on the inside of my cheek that doesn't seem to go away. It's been there for a few weeks now and sometimes it hurts when I eat. 
### Doctor: Based on what you've described, it's possible that you have an oral mucosal lesion. In order to diagnose this, we will need to perform a biopsy. This involves taking a small sample of tissue from the affected area and sending it to a lab for analysis. Depending on the results of the biopsy, we may need to perform additional diagnostic procedures on your nose, mouth, and pharynx, or even remove the lesion entirely through excision or other therapeutic procedures. We may also need to perform a tracheoscopy and laryngoscopy with biopsy or other therapeutic ear procedures if we suspect the lesion to be spreading.