Our cat has a sore on the back of his head. We took him to the vet today, but the vet could not say anything definite. Nothing respondent to UV light. The vet shaved the area, took some samples for analysis, cleaned the sore (it was covered with crust), and sent us home with some antibiotics and ointment (Clavaseptin and Surolan). It will take 10 days to get test results. In the meantime, I wonder if anyone here has seen something similar. A couple of pictures taken after the visit to the vet are posted below. I appreciate your input.