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Peer-reviewed veterinary case report

Cat with vomiting diagnosed with uterine adenomyosis and ovarian cysts

By Moosavian, Hamidreza et al.·Published in Topics in companion animal medicine·2022·Department of Clinical Pathology·View original on PubMed

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Original publication title: Diffuse Uterine Adenomyosis and Bilateral Ovarian Cysts in a Chinchilla Cat.

Species:
cat

Plain-English summary

A 10-year-old female chinchilla cat was brought to the vet because she had been vomiting intermittently and seemed a bit more tired than usual over the past few months. After some tests, the vet performed an elective spay surgery and found that she had both ovarian cysts and a condition called uterine adenomyosis (a problem with the uterus). It’s believed that her long-term use of a hormone medication for heat suppression may have contributed to these issues. After the surgery, the cat's symptoms were likely resolved, but this case highlights the importance of considering uterine problems in female cats with unexplained vomiting.

People also search for: chinchilla cat vomiting · cat ovarian cysts treatment · cat spay surgery recovery

Abstract

A 10-year-old female intact chinchilla cat was presented with intermittent vomiting and mild lethargy over the previous few months. Clinical signs and laboratory tests were unremarkable. Following an elective ovariohysterectomy, bilateral ovarian cysts and uterine adenomyosis were diagnosed in the patient. Because this cat had a long history of receiving low dose megestrol acetate for estrus suppression throughout her life (1.5 mg/cat, once during estrus, 2-3 times per year), it was suspected that the exogenous progestins increased her risk for disease. To our knowledge, this is the first report in cats demonstrating that even very low doses of megestrol acetate may increase the risk of developing uterine adenomyosis. Furthermore, uterine adenomyosis should be considered in the differential diagnosis of an intact female cat with a long history of unexplained vomiting.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/35283345/