Immunohistochemical Characterization of Feline Giant Cell Tumor of Bone (GCTb): What We Know and What We Can Learn from the Human Counterpart

Giant cell tumor of bone (GCTb) is a benign tumor in human medicine, still, in veterinary medicine, where it is more commonly described in cats, its recognition and diagnosis are still a challenge. With this study, we provide new insights into the histological and immunohistochemical phenotype of the tumor, confirming similarity with the human tumor, and encouraging further studies on this neoplastic entity also in our pets.