Black mold in the bag room: First case of Arthrocladium tropicale peritonitis in a peritoneal dialysis patient

We report the first human case of <i>Arthrocladium tropicale</i> peritonitis in a PD patient presenting with abdominal pain and low effluent cell counts. Diagnosis was confirmed by rDNA sequencing. The isolate was resistant to posaconazole but susceptible to amphotericin B. Treatment with intravenous amphotericin B, in conjunction with prompt catheter removal, resulted in full recovery, consistent with ISPD guideline principles. Environmental findings of damp walls and ant infestation near PD supplies highlight the importance of strict environmental control to prevent contamination from opportunistic fungi in PD.