What does grattage involve?

Grattage refers specifically to the process of removing morbid growths through scraping or brushing. This technique is often used in dermatological procedures to treat certain skin conditions or to remove superficial lesions. The term itself derives from the French word "gratter," which means to scrape. This method is particularly valuable when dealing with superficial lesions where more invasive surgical methods aren't necessary or desirable.

The other options refer to different medical procedures. For instance, the removal of tumors typically requires more invasive surgical techniques rather than the scraping involved in grattage. The administration of medications and training for physical therapies are distinct practices with no direct relationship to the mechanical scraping process that characterizes grattage. Therefore, when identifying what grattage entails, the correct answer highlights its specific role in the context of removing growths via scraping.