Study of canine cutaneous melanocytic tumours: evaluation of histological and immunohistochemical prognostic criteria in 65 cases.

The article presents a study on architectural and cytological criteria and immunohistochemical markers in 65 cases of canine cutaneous melanocytic tumors. Several minor and major histological criteria were proposed in the study, which includes neoplasm size, growth, symmetry, mitotic index, tumor shape and shape of the neoplastic cells. The study also recommends the use of Ki-67 antigen and CD44 adhesion abilities of the neoplastic melanocytic cells for the establishment of a more reliable prognosis.