Is the right testis more affected by cryptorchidism than the left testis? An ultrasonographic approach in dogs of different sizes and breeds.

Autor:	Tannouz VGS; Autonomous Veterinarian, Centre for Veterinarian Diagnosis and Support (Centro de Apoio e Diagnóstico Veterinário - CAD), Rio de Janeiro, Brazil., Mamprim MJ; Veterinarian Radiology and Animal Reproduction Department, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil., Lopes MD; Veterinarian Radiology and Animal Reproduction Department, School of Veterinary Medicine and Animal Science, UNESP, Botucatu, São Paulo, Brazil., Santos-Sousa CA; Federal University of Acre, Brazil., Souza Junior P; Federal University of Pampa, Uruguaiana, Brazil., Babinski MA; Morphology Department, Fluminense Federal University, Rio de Janeiro, Brazil., Abidu-Figueiredo M; Human and Animal Anatomy Department, Rural Federal University of Rio de Janeiro, Brazil. marceloabidu@gmail.com.
Jazyk:	angličtina
Zdroj:	Folia morphologica [Folia Morphol (Warsz)] 2019; Vol. 78 (4), pp. 847-852. Date of Electronic Publication: 2019 Mar 05.
DOI:	10.5603/FM.a2019.0022
Abstrakt:	Background: Considered the most common congenital testicular abnormality of companion animals and a predisposition factor to the development of testicular neoplasia, cryptorchidism is defined as the non-descent of one or both testes to their normal anatomical location. Data on the occurrence of cryptorchidism in Brazil are scarce. The purpose of this work was to verify the occurrence of cryptorchidism in dogs of different sizes and breeds. Materials and Methods: Cryptorchidism identification was carried out by ultrasound scanning, from November, 1994 to March, 2007, at the Centre for Veterinarian Diagnosis and Support (Centro de Apoio e Diagnóstico Veterinário - CAD), in Rio de Janeiro. 4924 male dogs of different breeds were examined, revealing 403 (8.2%) cryptorchidism. Results: In this study, occurrence took place more often on the right testicle (59.5%), more frequently displaying inguinal localisation (59.5%) and unilateral occurrence (70%). Regarding bilateral presentation, the symmetrical form was the most common (86.8%). Cryptorchidism was more common in the inguinal region of dog of small sized breeds and in the abdominal region in dogs of medium- and large-sized breeds. Conclusions: Ultrasound scan proved a valuable diagnosis tool for cryptorchid testes, giving precise localisation and parenchymal changes thus leading to a safe clinical treatment.
Databáze:	MEDLINE
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