Abstract
We provide the first case report of peritoneal dialysis (PD)-associated peritonitis due to Lasiodiplodia theobromae, a known plant pathogen causing rotting and dieback in post-harvest citrus fruit, in immunocompetent patient with fungal colonization inside the PD catheter lumen. A root cause analysis suspected the patient's umbilical infection as the source of contamination. The fungal infection was established through microscopic examination of the PD catheter lumen and galactomannan testing in both serum and effluent. The species of pathogen was confirmed by DNA barcoding. The patient responded well to timely PD catheter removal and a 2-week course of oral voriconazole. Preventive strategies should prioritize hygiene practices, including umbilical care, to mitigate the risk of contamination and subsequent infections of fungal pathogens.
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