Candidemia is a life-threatening fungal infection among patients undergoing long-term intravenous catheterization, hematopoietic stem cell transplantation, or immunosuppressive therapy, as well as patients with severe immunodeficiency or cancer. Endophthalmitis is a rare but severe form of ocular inflammation caused by infection of the intraocular cavity, which can lead to irreversible visual loss if not treated properly and promptly. The initial manifestation typically involves chorioretinitis, which requires early diagnosis and appropriate treatment. Candida guilliermondii is a non-Candida albicans yeast species; its frequency of detection in Japan has increased in recent years, and many drug-resistant and less-chorioretinitis-related strains are known. Here, we describe a 17-year-old girl with an eating disorder who exhibited chorioretinitis because of catheter-related bloodstream infection (CRBSI) caused by C. guilliermondii. The patient was hospitalized with severe weight loss, and she was presumed to develop candidemia because of immunosuppression during central parenteral nutrition therapy with a peripherally inserted central catheter. After onset of CRBSI, the catheter was immediately removed. Antifungal therapy was modified following fundus examination, fungal species confirmation, and drug sensitivity confirmation; thus, the patient recovered without long-term complications. To the best of our knowledge, this is the first report of C. guilliermondii-induced chorioretinitis in a patient with an eating disorder. Prolonged malnutrition and immunosuppression during nutritional therapy create a risk of candidemia in patients with eating disorders. After the onset of CRBSI, early administration and appropriate use of antifungal agents, with respect to specific ocular complications, are important for reduction of both mortality and ocular complications.
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