A Case of Canine Nephroblastoma with Unusual Neuronal and Mesenchymal Components

A renal tumor was found in a I-year-old Shi-Tzu dog. Histopathological observation revealed that the tumor consisted of nephroblastic neoplastic cells, some of which formed tubular and primitive glomerular structures, and mesenchymal tissues showing differentiation into smooth muscle, bone, and neuronal components. The tumor was a rare case of canine nephroblastoma with unusual neuronal components.