Identification of ectopic ovotestis in a dog with XX ovotesticular,SRY‐negative,disorder of sexual development |
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| Authors: | M Diel de Amorim A Lerer T Durzi RA Foster CJ Gartley |
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| Affiliation: | 1. Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada;2. Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada;3. Smith Lane Animal Hospital, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada;4. Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada |
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| Abstract: | A 1‐year‐old, previously spayed phenotypic female Poodle/Soft‐coated Wheaten Terrier (Whoodle) cross was presented for a suspected ovarian remnant. Serum luteinizing hormone (LH) concentration was below the detection limit (<1 ng/ml Witness® LH), and serum progesterone concentration was elevated in the chemiluminescence immunoassay (CLIA; 20 ng/ml), consistent with dioestrus and presence of ovarian tissue. Transabdominal ultrasound revealed a retroperitoneal soft tissue structure suspected to be a gonad. On exploratory laparotomy, a gonad was removed from the cranial retroperitoneum, cranial to the right kidney, after ligation of its primary blood supply. Histological examination proved the gonad to be an ovotestis. Subsequent cytogenetics revealed a 78 XX karyotype, thus confirming the diagnosis of ectopic ovotestis in a XX ovotesticular, SRY‐negative, disorder of sexual development in a dog. |
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