AEMV ForumCYSTIC ENDOMETRIAL HYPERPLASIA AND BACTERIAL ENDOMETRITIS ASSOCIATED WITH AN INTRAUTERINE FOREIGN BODY IN A GUINEA PIG WITH OVARIAN CYSTIC DISEASE
Section snippets
Case Report
A 3-year-old, intact female guinea pig weighing 920 g was referred with a 4-month history of nonpruritic hair loss on the ventral abdomen. The guinea pig had been kept as a single pet and had never been bred.
On physical examination, the guinea pig was in a good body condition, and clinical abnormalities were limited to the following: nearly complete alopecia of the ventral abdomen and flanks, hyperkeratosis of the nipples, viscous discharge from the vaginal orifice, masses consistent with
Discussion
Cystic ovarian disease is common in female guinea pigs. Average age of affected sows is 1.5 years of age.20 Ovarian cysts in this species may cause bilateral, nonpruritic alopecia of the ventral abdomen and flanks, as observed in this case.21 Ovarian cysts in domestic animals are classified by their location of origin in relation to the ovary (periovarian, intraovarian) or according to cause (physiologic, infectious, and neoplastic).22, 23 Most ovarian cysts in guinea pigs are physiologic and
Acknowledgments
This study was supported by the internal grant agency of the University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic, project number IGA 54/2010/FVL. The authors thank Dr. Corinne Lendon, BSc, BVSc, PGCertL&T, PhD for comments and English grammar and spelling corrections.
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Electrolyte, Oestradiol and Progesterone Concentrations in Ovarian Cyst Fluid in Guinea Pigs (Cavia porcellus)
2022, Journal of Comparative PathologyCitation Excerpt :This issue has not been studied in guinea pigs, even though clinical signs of hyperoestrogenism may occur in guinea pigs with highly developed ovarian cysts (Bean, 2013; Bertram et al, 2018). The evaluation of hormone levels in the fluid from ovarian cysts in guinea pigs has been the subject of relatively few studies (Riecken, 2008; Kohutova et al, 2017). In cattle, it has been found that serum sex hormone levels are not elevated even at high concentrations in cyst fluid (Bean, 2013).
Pathology of Diseases of Geriatric Exotic Mammals
2020, Veterinary Clinics of North America - Exotic Animal PracticeCitation Excerpt :A common associated lesion is bilateral nonpruritic flank alopecia, which is suspected to be hormonally influenced although rete ovarii are not documented to produce sex hormones.20 One guinea pig report with a confirmed follicular ovarian cyst had elevated estrogen levels.21 Renal disease is a common finding in older guinea pigs.
Genital Tract Pathology in Female Pet Guinea Pigs (Cavia porcellus): a Retrospective Study of 655 Post-mortem and 64 Biopsy Cases
2018, Journal of Comparative PathologyCitation Excerpt :The current literature claims that only follicular cysts, but not cystic rete ovarii, may cause bilateral alopecia because they may induce hyperoestrogenism, while cystic rete ovarii are thought to never be steroidogenic (Bean, 2013). To the authors’ knowledge, currently there is only one case report that describes elevated oestrogen levels in blood and cyst fluid of a guinea pig with bilateral, non-pruritic alopecia and bilateral, multiloculated ovarian cysts, while additionally performing histopathological examination of the cyst, which was determined to be a follicular cyst (Kohutova et al., 2017). Furthermore, in a doctoral dissertation, oestrogen and progesterone levels were measured in blood, and in some cases in the cyst fluid, of guinea pigs with ovarian cysts; however, cysts were not examined histopathologically (Ricken, 2008).
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