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Case of corneal fungal keratitis caused by Purpureocillium lilacinum who was successfully treated with topical pimaricin Atsushi Sawada 1 , Hiroki Tsujinaka 1 , Naoki Yamaguchi 2 , Tetsuo Ueda 1 , Masato Tashiro 3 , Koichi Izumikawa 3 , Nahoko Ogata 1 1Department of Ophthalmology, Nara Medical University 2Center for Infectious Diseases of Nara Medical University 3Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences pp.1007-1011
Published Date 2023/8/15
DOI https://doi.org/10.11477/mf.1410214878
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Abstract Purpose:Purpureocillium lilacinumP. lilacinum)is a species of filamentous fungus found in soil and air and is a rare cause of keratitis. We report a case of fungal keratitis caused by P. lilacinum that was resistant to treatment with voriconazole eye drops alone, but responded well to a combination therapy of pimaricin and voriconazole eye drops.

Case:A 72-year-old man who mowed the grass on day X−2 visited a doctor for right eye pain and vision impairment from day X−1. The doctor diagnosed it as bacterial keratitis and referred him to our department on the same day.

Findings:At the initial visit, a circular opacity and keratic precipitate were observed in the central area of the right cornea. After a culture of corneal scraping was submitted, treatment was started with levofloxacin and dibekacin eye drops. On day X+6, hypopyon was observed in the right eye. Considering the possibility of fungal infection, voriconazole eye drop was prescribed additionally. Despite the addition of systemic fosfluconazole treatment on day X+13, keratic inflammation worsened. However, after the addition of pimaricin eye drop on day X+25, hypopyon reduced and keratic inflammation improved markedly. The inflammation continued to improve, and on day X+31, the hypopyon disappeared;the patient was discharged from the hospital on day X+37. Thereafter, there has been no worsening of keratitis till date. P. lilacinum was identified from the corneal scraping culture.

Conclusion:We experienced a case of fungal keratitis caused by P. lilacinum which was resistant to treatment with voriconazole eye drops alone but responded well to a combination therapy of pimaricin and voriconazole eye drops.


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電子版ISSN 1882-1308 印刷版ISSN 0370-5579 医学書院

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