A 4 year-old female spayed Domestic Shorthair cat is presented as an emergency. The owner reports that about one week ago crusty, non pruritic lesions were noted around both eyes, on the pinnae on an on the bridge of the nose (picture 1 and 2). (...)
You make a clinical examination and find crusty and partially inflammatory lesions also on different nail beds (all feet, picture 3) and around the nipples which were not seen by the owner and the veterinarian yet.
What differential diagnosis seems most likely for you now?