Objective: Cryptorchidism, the failure of one or both testes to descend into the scrotum, is a common congenital condition in male dogs and cats. This study aimed to assess the incidence and characteristics of cryptorchidism in neutered dogs and cats.
Materials and Methods: A retrospective analysis was conducted on 1622 animals (348 dogs and 1274 cats) brought for neutering between 2015 and 2023. Cryptorchid was diagnosed by clinical examination and its location was determined by ultrasound examination. Animals diagnosed with cryptorchid were castrated. Breed, age weight data and location of the retained testicle of all patients were recorded.
Results: Dogs exhibited a higher prevalence (8.91%) compared to cats (3.30%). The affected testes were predominantly subcutaneous in both species (61.29% in dogs, 73.81% in cats). Unilateral cryptorchidism was more common, with equal distribution between the right and left sides in dogs and a higher incidence on the left in cats. Purebred animals, particularly small-sized breeds, showed a higher susceptibility to cryptorchidism.
Conclusion: Our study provides valuable insights into the prevalence, localization, and characteristics of cryptorchidism in dogs and cats, emphasizing the importance of detection and intervention to safeguard the health of affected animals. The findings highlight the higher susceptibility of purebred dogs and cats.
This study was approved by the Van Yuzuncu Yil University Animal Experiments Local Ethics Committee (2023/14-05).
Kaynakça
Amann RP, Veeramachaneni DNR. Cryptorchidism and associated problems in animals. Anim Reprod. 2006; 3(2):108-120.
Birchard SJ, Nappier M. Cryptorchidism. Compendium. 2008; 30:325-337.
David S, de Rooster H, Van Goethem B. Single-port laparoscopic-assisted abdominal cryptorchidectomy in 14 dogs. Vet Surg. 2023; 52:1-8.
Davidson AP. Reproductive System Disorders. In: Nelson RW, Couto CG, eds. Small Animal Internal Medicine. 6 th ed. St. Louis: Elsevier; 2020. p.935-1036.
Englar RE. Common clinical presentations in dogs and cats. Hoboken: John Wiley & Sons; 2019. p.719-728.
Felumlee A, Reichle J, Hecht S, et al. Use of ultrasound to locate retained testes in dogs and cats. Vet Radiol Ultrasound. 2012; 53(5):581-585.
Gier JD, van Sluijs FJ. Testes. In: Rijnberk A, Kooistra HS, eds. Clinical Endocrinology of Dogs and Cats. 2 nd ed. Hannover: Schlutersche; 2010. p.235-251.
Gradil C, McCarthy R. Cryptorchidism. In: Monnet E, ed. Small Animal Soft Surgery. 2 nd ed. Hoboken: John Wiley & Sons; 2023. p.720-725.
Griffin B. Distinguishing between sexually intact and previously altered dogs and cats. In: White S, ed. High-Quality, High-Volume Spay and Neuter and Other Shelter Surgeries. 1 st ed. New Jersey: Wiley‐Blackwell; 2020. p.5-27.
Little S. Feline reproduction: Problems and clinical challenges. J Feline Med Surg. 2011; 13(7):508-515.
Millard HAT. Testes, epididymides, and scrotum. In: Johnston SA, Tobias KM, eds. Veterinary Surgery: Small Animal. 2 nd ed. Elsevier; 2018. p.2143-2157.
Miller N, Van Lue S, Rawlings C. Use of laparoscopic-assisted cryptorchidectomy in dogs and cats. J Am Vet Med Assoc. 2004; 224(6):875-878.
Millis D, Hauptman J, Johnson C. Cryptorchidism and monorchism in cats: 25 cases (1980-1989). J Am Vet Med Assoc. 1992; 200(8):1128-1130.
Moon JH, Yoo DY, Jo YK, et al. Unilateral cryptorchidism induces morphological changes of testes and hyperplasia of Sertoli cells in a dog. Lab Anim Res. 2014; 30(4):185-189.
Pretzer S. Canine embryonic and fetal development: A review. Theriogenology. 2008; 70(3):300-303.
Richardson E, Mullen H. Cryptorchidism in cats. Compend Contin Educ Pract Vet. 1993; 15:1342-1369.
Romagnoli SE. Canine cryptorchidism. Vet Clin North Am Small Anim Pract. 1991; 21(3):533-544.
Ruble R, Hird D. Congenital abnormalities in immature dogs from a pet store: 253 cases (1987-1988). J Am Vet Med Assoc. 1993; 202(4):633-636.
Runge J, Mayhew P, Case J, Singh A, Mayhew K, Culp W. Single-port laparoscopic cryptorchidectomy in dogs and cats: 25 cases (2009-2014). J Am Vet Med Assoc. 2014; 245(11):1258-1265.
Scott K, Levy J, Crawford P. Characteristics of free-roaming cats evaluated in a trap-neuter-return program. J Am Vet Med Assoc. 2002; 221(8):1136-1138.
Spangenberg C. Canine cryptorchidism: A concise review of its Origin, diagnosis and treatment Caroline Spangenberg. BEMS Reports. 2021; 7(1):1-3.
Steckel RR. Use of an inguinal approach adapted from equine surgery for cryptorchidectomy in dogs and cats: 26 cases (1999-2010). J Am Vet Med Assoc. 2011; 239(8):1098-1103.
Tannouz V, Mamprim M, Lopes M, et al. Is the right testis more affected by cryptorchidism than the left testis? An ultrasonographic approach in dogs of different sizes and breeds. Folia Morphol. 2019; 78(4):847-852.
Villalobos-Gomez J, Del-Angel-Caraza J, Tapia-Araya A, et. al. A Retrospective study of laparoscopic cryptorchidectomy in 19 Cats with intra-abdominal testes. Animals. 2023; 13(1):181.
Wallace J, Levy J. Population characteristics of feral cats admitted to seven trap-neuter-return programs in the United States. J Feline Med Surg. 2006; 8(4):279-284.
Yates D, Hayes G, Heffernan M, Beynon R. Incidence of cryptorchidism in dogs and cats. Vet Rec. 2003; 152(16):502-504.
Amann RP, Veeramachaneni DNR. Cryptorchidism and associated problems in animals. Anim Reprod. 2006; 3(2):108-120.
Birchard SJ, Nappier M. Cryptorchidism. Compendium. 2008; 30:325-337.
David S, de Rooster H, Van Goethem B. Single-port laparoscopic-assisted abdominal cryptorchidectomy in 14 dogs. Vet Surg. 2023; 52:1-8.
Davidson AP. Reproductive System Disorders. In: Nelson RW, Couto CG, eds. Small Animal Internal Medicine. 6 th ed. St. Louis: Elsevier; 2020. p.935-1036.
Englar RE. Common clinical presentations in dogs and cats. Hoboken: John Wiley & Sons; 2019. p.719-728.
Felumlee A, Reichle J, Hecht S, et al. Use of ultrasound to locate retained testes in dogs and cats. Vet Radiol Ultrasound. 2012; 53(5):581-585.
Gier JD, van Sluijs FJ. Testes. In: Rijnberk A, Kooistra HS, eds. Clinical Endocrinology of Dogs and Cats. 2 nd ed. Hannover: Schlutersche; 2010. p.235-251.
Gradil C, McCarthy R. Cryptorchidism. In: Monnet E, ed. Small Animal Soft Surgery. 2 nd ed. Hoboken: John Wiley & Sons; 2023. p.720-725.
Griffin B. Distinguishing between sexually intact and previously altered dogs and cats. In: White S, ed. High-Quality, High-Volume Spay and Neuter and Other Shelter Surgeries. 1 st ed. New Jersey: Wiley‐Blackwell; 2020. p.5-27.
Little S. Feline reproduction: Problems and clinical challenges. J Feline Med Surg. 2011; 13(7):508-515.
Millard HAT. Testes, epididymides, and scrotum. In: Johnston SA, Tobias KM, eds. Veterinary Surgery: Small Animal. 2 nd ed. Elsevier; 2018. p.2143-2157.
Miller N, Van Lue S, Rawlings C. Use of laparoscopic-assisted cryptorchidectomy in dogs and cats. J Am Vet Med Assoc. 2004; 224(6):875-878.
Millis D, Hauptman J, Johnson C. Cryptorchidism and monorchism in cats: 25 cases (1980-1989). J Am Vet Med Assoc. 1992; 200(8):1128-1130.
Moon JH, Yoo DY, Jo YK, et al. Unilateral cryptorchidism induces morphological changes of testes and hyperplasia of Sertoli cells in a dog. Lab Anim Res. 2014; 30(4):185-189.
Pretzer S. Canine embryonic and fetal development: A review. Theriogenology. 2008; 70(3):300-303.
Richardson E, Mullen H. Cryptorchidism in cats. Compend Contin Educ Pract Vet. 1993; 15:1342-1369.
Romagnoli SE. Canine cryptorchidism. Vet Clin North Am Small Anim Pract. 1991; 21(3):533-544.
Ruble R, Hird D. Congenital abnormalities in immature dogs from a pet store: 253 cases (1987-1988). J Am Vet Med Assoc. 1993; 202(4):633-636.
Runge J, Mayhew P, Case J, Singh A, Mayhew K, Culp W. Single-port laparoscopic cryptorchidectomy in dogs and cats: 25 cases (2009-2014). J Am Vet Med Assoc. 2014; 245(11):1258-1265.
Scott K, Levy J, Crawford P. Characteristics of free-roaming cats evaluated in a trap-neuter-return program. J Am Vet Med Assoc. 2002; 221(8):1136-1138.
Spangenberg C. Canine cryptorchidism: A concise review of its Origin, diagnosis and treatment Caroline Spangenberg. BEMS Reports. 2021; 7(1):1-3.
Steckel RR. Use of an inguinal approach adapted from equine surgery for cryptorchidectomy in dogs and cats: 26 cases (1999-2010). J Am Vet Med Assoc. 2011; 239(8):1098-1103.
Tannouz V, Mamprim M, Lopes M, et al. Is the right testis more affected by cryptorchidism than the left testis? An ultrasonographic approach in dogs of different sizes and breeds. Folia Morphol. 2019; 78(4):847-852.
Villalobos-Gomez J, Del-Angel-Caraza J, Tapia-Araya A, et. al. A Retrospective study of laparoscopic cryptorchidectomy in 19 Cats with intra-abdominal testes. Animals. 2023; 13(1):181.
Wallace J, Levy J. Population characteristics of feral cats admitted to seven trap-neuter-return programs in the United States. J Feline Med Surg. 2006; 8(4):279-284.
Yates D, Hayes G, Heffernan M, Beynon R. Incidence of cryptorchidism in dogs and cats. Vet Rec. 2003; 152(16):502-504.
Karasu, A., Kuşcu, Y., Kayıkcı, C., Gençcelep, M., vd. (2024). Evaluation of cryptorchidism in cats and dogs. Turkish Journal of Veterinary Research, 8(1), 81-87. https://doi.org/10.47748/tjvr.1440967
AMA
Karasu A, Kuşcu Y, Kayıkcı C, Gençcelep M, Kavas B, Ekin M. Evaluation of cryptorchidism in cats and dogs. TJVR. Nisan 2024;8(1):81-87. doi:10.47748/tjvr.1440967
Chicago
Karasu, Abdullah, Yağmur Kuşcu, Caner Kayıkcı, Musa Gençcelep, Berna Kavas, ve Müslüm Ekin. “Evaluation of Cryptorchidism in Cats and Dogs”. Turkish Journal of Veterinary Research 8, sy. 1 (Nisan 2024): 81-87. https://doi.org/10.47748/tjvr.1440967.
EndNote
Karasu A, Kuşcu Y, Kayıkcı C, Gençcelep M, Kavas B, Ekin M (01 Nisan 2024) Evaluation of cryptorchidism in cats and dogs. Turkish Journal of Veterinary Research 8 1 81–87.
IEEE
A. Karasu, Y. Kuşcu, C. Kayıkcı, M. Gençcelep, B. Kavas, ve M. Ekin, “Evaluation of cryptorchidism in cats and dogs”, TJVR, c. 8, sy. 1, ss. 81–87, 2024, doi: 10.47748/tjvr.1440967.
ISNAD
Karasu, Abdullah vd. “Evaluation of Cryptorchidism in Cats and Dogs”. Turkish Journal of Veterinary Research 8/1 (Nisan 2024), 81-87. https://doi.org/10.47748/tjvr.1440967.
JAMA
Karasu A, Kuşcu Y, Kayıkcı C, Gençcelep M, Kavas B, Ekin M. Evaluation of cryptorchidism in cats and dogs. TJVR. 2024;8:81–87.
MLA
Karasu, Abdullah vd. “Evaluation of Cryptorchidism in Cats and Dogs”. Turkish Journal of Veterinary Research, c. 8, sy. 1, 2024, ss. 81-87, doi:10.47748/tjvr.1440967.
Vancouver
Karasu A, Kuşcu Y, Kayıkcı C, Gençcelep M, Kavas B, Ekin M. Evaluation of cryptorchidism in cats and dogs. TJVR. 2024;8(1):81-7.