Sertoli Cell Tumor In A Labrador Retriever

A 7 years old male Labrador Retriever was presented with the history of fast growing enlarged abdominal swelling near the inguinal region for 6 months. On clinical examination, right testis was descended and a mass located near left inguinal region was movable and non-painful. Abdominal plain radiography revealed soft tissue mass on the inguinal region. No metastasis on thorax radiography. Haematology and serum biochemistry values were within the normal range. Fine needle aspiration biopsy confirmed the presence of Sertoli cell tumor in the cryptorchid testis. Surgical excision of the unilateral testicular tumor and the normal descended testis was performed under general anaesthesia. Histopathology of the excised testicular tumor has pale eosinophilic cytoplasm, abundant fibrous tissue stroma and less prominent tubular structure.