The above is a cyst on a dog with little under fur. The cyst is easier to find when the family member doesn't have thick underfur. I had checked Echo very carefully before going to the vet and when there we found two more which were undetected in his thick underfur. While I was waiting for the anesthesia to kick in I went over him again and found two more which means he doesn't need to go back any time soon. The Vet reconfirmed that Echo is clearly a high maintenance guy and I wouldn't even try to dispute that. He is at the Vet's more than our other two combined. If you have fur family check them for these cysts as they can get infected in a couple days if not removed.