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Peer-reviewed veterinary case report

Mare with large uterine cyst - how it was treated

By Rambags, B P B & Stout, T A E·Published in The Veterinary record·2005·Department of Equine Sciences, Netherlands·View original on PubMed

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Original publication title: Transcervical endoscope-guided emptying of a transmural uterine cyst in a mare.

Species:
horse

Plain-English summary

An 18-year-old Friesian mare was found to have a large cyst in her uterus during an ultrasound exam. The cyst was connected to several smaller cysts inside the uterus, creating a complex situation. To treat this, veterinarians used a special camera to remove the inner part of the cyst and then were able to drain the larger part of the cyst by gently massaging the area from outside the body. This procedure confirmed that the cysts were indeed connected.

Abstract

An 18-year-old Friesian mare with a large intrauterine cyst was examined by transrectal ultrasonography. There were several small to moderately sized intraluminal endometrial cysts, one of which connected via the myometrium to a large subserosal cyst, thereby effectively forming a 'transmural' cyst complex. During a videohysteroscopy, the intraluminal part of this transmural cyst was removed by electrocoagulation via a polypectomy snare. It was then possible to drain the large subserosal part of the cyst into the uterine lumen by transrectal massage, thereby confirming the presence of the transmural connection.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/15908497/