Seminomas and an interstitial cell tumor in an 8 year old male Husky

Abstract

An eight year old male Siberian Husky was presented for semen collection and assessment. Gross testicular asymmetry with an enlarged, firm, oval-shaped left testis and a small, atrophied right testis was found on palpation. There were no scrotal lesions or a history of any trauma involving the scrotal contents. The proportion of motile sperm in the ejaculate was 30%, and only 25% of his sperm were classified as morphologically normal. The predominant morphological defect present was proximal droplets. Testicular ultrasonography revealed a large mottled mass of mixed echogenicity in the left testis and a smaller mass in the right testis. A routine, bilateral closed castration procedure was performed and the testes were submitted for histopathologic assessment. The mass in the left testis was confirmed to be a seminoma and the mass in the right testis was diagnosed as an interstitial cell tumor. An intra-tubular seminoma was microscopically present as well in the right testis. Evidence of secondary testicular degeneration adjacent to both tumors was also observed.