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Peer-reviewed veterinary case report

Male puppy dog leaking urine caused by uterus masculinus connection

By Crosby, Jilli et al.·Published in Journal of the American Animal Hospital Association·2023·From the Department of Clinical Sciences and Services, United Kingdom·View original on PubMed

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Original publication title: Uterus Masculinus with a Patent Urethral Communication Documented with Positive Contrast Computed Tomography.

Species:
dog

Plain-English summary

A 9-month-old male Labrador retriever was brought in for ongoing urinary incontinence, meaning he was unable to control his urination. After tests including an ultrasound and a special imaging procedure, the vet discovered a rare condition called uterus masculinus, which is an abnormal structure that can form in male dogs. This condition was found to be connected to his urethra, which was confirmed during surgery. After the abnormal tissue was removed, the dog’s urinary issues were resolved, highlighting the importance of considering this condition in young male dogs with similar symptoms.

People also search for: male dog urinary incontinence · Labrador retriever urinary problems · uterus masculinus treatment

Abstract

A 9 mo old male Labrador retriever presented for investigation into persistent urinary incontinence. Abdominal ultrasound and retrograde urethrocystogram with computed tomography documented a uterus masculinus (UM), which was confirmed on histopathology after surgical removal. A connection between the UM and the urethra was present, documented by positive contrast retrograde urethrocystography and confirmed with surgery. Typically, in the literature, UM are blind ending, and there are only a few case reports that demonstrate an assumed connection. This case has demonstrated a patent connection between the UM and the urethra, which should be considered a differential diagnosis for persistent urinary incontinence and urinary tract infection in juvenile male dogs.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/37167251/