At just four months old, young puppy Merlin, arrived in our care with a painful, debilitating mass on his stomach. We had never seen anything like it before. Merlin’s condition is so unusual that even the most experienced veterinarians are struggling to uncover the root cause. Less than three days into the new year as temperatures plummeted, our rescue received a desperate call late on a Friday night—a tiny puppy needed our help. He had been found by a kind stranger who was deeply concerned abou