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This is the first report of Aureobasidium (A.) pullulans as an, opportunistic pulmonary infection in a liver transplant recipient. A 46-year-old caucasian man. had an orthotopic liver transplant in 1988. His liver disease was primary sclerosing cholangitis. He required 2 subsequent liver re-transplants for primary graft non-function and acute rejection. The patient had been living in the California desert for two months prior to admission and presented with ventilator-dependent acute respiratory failure and hemodialysis-dependent acute renal failure. Imaging studies revealed severe bilateral infiltrates. His initial bronchoalveolar Lavage (BAL) and brushings gl ew A. pullulans. Pancultures, including sputum and throat cultures, were negative for bacterial or other fungal organisms. The patient responded to pulmonary support and aggressive systemic antifungal agents while being maintained on cyclosporine and prednisone for immunosuppression, He was discharged to a shilled nursing facility 37 days after hospitalisation. Delay in discharge was primarily due to severe malnutrition and renal impairment. Opportunistic fungal infections continue to be a major problem in. immunosuppressed patients including liver transplant recipients. Here we report a pulmonary infection with. Coccidioides (C.) immitis and superinfection with A. pullulans Opportunistic infections such as A. pullulans can be treated successfully with systemic fluconazole when, amphotericin B is not well tolerated.