What is the best test for cryptorchidism?

Parker, R.

doi:10.1111/eve.12346

Cited by 4 publications

(3 citation statements)

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“…Transabdominal ultrasound can be a safe and reliable technique in horses of all ages, sizes and temperaments, with a reported accuracy of up to 98% 1,11–13 . Hormone assays : Measurement of anti‐Mullerian hormone is an effective detection method for testicular tissue and is higher in the cryptorchid horse compared to the entire stallion 1,14 . It is also detectable following hemi‐castration where the cryptorchid testicle remains 15 .…”

Section: Introductionmentioning

confidence: 99%

“…It is also detectable following hemi‐castration where the cryptorchid testicle remains 15 . Testosterone measurements with or without human chorionic gonadotropin (hCG) stimulation may be unreliable in young horses or during the winter due to significant fluctuations in levels 5,11,14,16 . Oestrone sulphate is unreliable in horses less than 3 years old or donkeys, but is reported to be 96% accurate in mature horses 1,5,11,14,16 .…”

Section: Introductionmentioning

confidence: 99%

“…Testosterone measurements with or without human chorionic gonadotropin (hCG) stimulation may be unreliable in young horses or during the winter due to significant fluctuations in levels 5,11,14,16 . Oestrone sulphate is unreliable in horses less than 3 years old or donkeys, but is reported to be 96% accurate in mature horses 1,5,11,14,16 . To the author's knowledge, no cases of testicular teratomas have been documented in horses over the age of 5 years.…”

Section: Introductionmentioning

confidence: 99%

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Cryptorchid investigation of an adult cob pony with unknown history

Watkins¹

2021

Vet Record Case Reports

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A 400 kg, male, adult cob pony presented with a history of stallion‐like behaviour without testicles palpable. The blood oestrone sulphate level was 4.90 ng/ml, consistent with cryptorchidism (0.1–10.0 ng/ml; IDEXX). Age was estimated at 8 years by dentition. Previous veterinary treatment history was unavailable. Examination under general anaesthesia found no evidence of prior surgical castration. Investigation of the inguinal region was unremarkable with no evidence of an inguinal extension of the gubernaculum testis or vaginal process on either side. Exploratory laparotomy of the right abdomen revealed a cystic, 5 × 8 cm mass with homogenous tapering stalk. This was removed by emasculation. Histological examination identified the mass as a benign testicular teratoma. Blood anti‐Mullerian hormone 5 days after the surgery measured 0.9 ng/ml. The pony made a full recovery and the owner reported the behavioural issues have resolved.

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Section: Introductionmentioning

confidence: 99%