BACKGROUND: Cryptorchidism is a congenital anomaly in which one (unilateral cryptorchidism) or both (bilateral cryptorchidism) testes fail to descend into the scrotum.                  OBJECTIVE: The aim of this study was to describe the anatomical and histological structure of the inguinal testis in the adult donkey. METHODS: In this study, after examination of the 59 donkeys, three of them with unilateral cryptorchidism in inguinal region were identified. These animals were euthanized, and their testicles were removed and evaluated biometrically. Then, the samples were fixated in 10% formalin solution and after sectioning, were stained with Hematoxylin-eosin and PAS, and examined under a light microscope. RESULTS: The results showed that the inguinal testes were stiff, epididymis was not determined and their size and weight were less than scrotal testes. The difference between the weight of cryptorchid and healthy testicles was statistically significant (p<0.05). Seminiferous tubules had lost their natural shape and inner cavity tubes did not have germ cells, and only a limited number of Sertoli cells could be seen. Remaining seminiferous tubules were only visible in the mediastinum. The cortical and subcapsular regions were without tubes and were occupied by loose connective tissues. CONCLUSIONS: Results indicated that the inguinal testes in adult donkeys lost their natural structure and more connective tissues and blood vessels are substituted.

Objective: This case report describes the surgical management of a clinical case of sertoli cell tumor in a Lhasa Apso breed of dog Materials and methods: A 4-year old sexually intact Lhasa apso was presented with complaints of alopecia, shivering, reduced appeteite and swelling of the inguinal region. The dog was subjected to thorough physical, Hematological, Histopathological and Radiographic evaluations. Results: The vital parameters were within normal values. Hematological analysis revealed anemia and thrombocytopenia as the common findings. Abdominal radiography showed a soft tissue mass in the inguinal region. Histopathology revealed testicular hypoplasia with poorly developed seminiferous tubule with no discernible lumen or spermatozoa and several proliferating sertoli cells on the lining of the basement membrane of the seminiferous tubules which is diagnostic of sertoli cell tumor. Decision to surgically excise the tumor was arrived at. The anesthetic protocol involved premedication with atropine sulphate dosed at 0.04 mg/kg bwt and xylazine dosed at 2 mg/kg bwt intramuscularly (IM). Anesthesia was induced and maintained with propofol dosed at 6 mg/kg bwt intravenously (IV). The tumor mass was surgically excised. Broad spectrum antibiotics (penstrep) and analgesic (pentazocine) were administered for 5 days IM. Conclusion: The condition of the dog improved remarkably and it was discharged on postoperative day 10. [J Adv Vet Anim Res 2017; 4(4.000): 394-398]