### Patient: Hi doctor. I have noticed white patches on the inside of my mouth that have been there for a while. I am concerned that it might be oral leukoplakia. 
### Doctor: Hello. Based on your symptoms, it is possible that you have oral leukoplakia. To diagnose this condition, we will need to perform a biopsy on the affected area. Depending on the results of the biopsy, other therapeutic procedures on the nose, mouth and pharynx may be required for treatment. However, the other medical tests such as Prostate specific antigen measurement, Excision (Removal), Corneal transplant, Procedures on spleen (Spleen operation), and Removal of ectopic pregnancy are not related to oral leukoplakia.