Peer-reviewed veterinary case report
Male dog with persistent Mullerian duct syndrome and prostate cyst
By Welsh, Peter J et al.·Published in Frontiers in veterinary science·2023·Department of Veterinary Clinical Sciences, United States·View original on PubMed →
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Original publication title: Case report: Persistent Müllerian duct syndrome and enlarged prostatic utricle in a male dog.
- Species:
- dog
Plain-English summary
A 1-year-old male Miniature Schnauzer mix was brought to the vet because he had blood in his urine that came and went. An ultrasound showed a large fluid-filled structure near his prostate, which looked like a uterus. After further tests, the dog was diagnosed with a rare condition called persistent Müllerian duct syndrome (PMDS), which caused a connection between his bladder and reproductive tract. The vet performed surgery to remove the abnormal structures, and this resolved the bleeding. The dog is now recovering well.
People also search for: dog blood in urine Miniature Schnauzer · persistent Müllerian duct syndrome treatment · male dog hematuria causes
Abstract
A 1-year-old male intact Miniature Schnauzer mix was presented for chronic intermittent hematuria. Abdominal ultrasonography revealed a large, fluid-filled cystic structure extending cranially and dorsally to the prostate. Computed tomography scan images revealed that the fluid-filled cavity resembled a uterus, with both horns entering the scrotum through the inguinal canal adjacent to the testes. On cytogenetic analysis, the dog was found to have a homozygote mutation onconsistent with persistent Müllerian duct syndrome (PMDS). A gonadohysterectomy was performed, and surgical and histologic findings confirmed the presence of a uterus, oviducts, vagina, and testes in this dog. Additionally, an intraoperative fluoroscopy exam revealed a communication between the uterus and the bladder via an enlarged utricle, explaining the hematuria and urine in the reproductive tract (urometra). To our knowledge, this is the first clinical report of a phenotypically intact male dog with PMDS and urometra due to an enlarged prostatic utricle. This case illustrates a combination of a disorder of sex and urogenital sinus development.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/37470070/