A foreign body cystitis in a 1.5-year-old male guinea pig with treatment-resistant stranguria and haematuria was diagnosed by ultrasonographic examination. A sedge leaf (Carex species) was identified as the causing agent by sequencing of nuclear ribosomal DNA (ITS1) and a chloroplast marker (trnL-trnF) from the leaf obtained on postmortem examination. The eventual mechanism of migration of the plant leaf into the bladder was investigated. A concomitant fungal lower urinary tract infection with Candida albicans was diagnosed by cultural means and DNA sequencing. Firm granules composed of inflammatory secretions blocked the urethra and interfered with diagnostic and therapeutic approaches. To the authors’ knowledge this is the first report of foreign body cystitis in a small rodent, which should be on the differential list of therapy-resistant lower urinary tract disease in guinea pigs.
- guinea pigs
- urinary tract
- foreign body
- plant leaf
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Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
Data availability statement All data relevant to the study are included in the article.
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