[Detection of Exophiala dermatitidis (Kano) De Hoog 1977 in septicemia of a child with acute lymphatic leukemia and in patients with cystic fibrosis].

In 1992 black yeasts of the species Exophiala dermatitidis were isolated for the first time from patients at the University Clinics in Dresden. Since that time this relatively rarely detected fungus has been frequently cultivated from clinical specimens. Our observations were: Patient with acute lymphatic leukaemia: In a 3 1/2 years old boy E. dermatitidis was isolated from 8 blood cultures during a septicaemic phase. Elimination of the fungus and decreasing of the fever were reached after removing a central venous catheter and treatment with amphotericin B and 5-fluorocytosine for 3 weeks. In this patient E. dermatitidis was assessed to be the cause of the septicaemia setting in via catheter. Patients with cystic fibrosis: In 8 of 51 mycologically surveyed patients E. dermatitidis was frequently - in 2 cases for a long time up to 7 months - isolated from sputum specimens. The occurrence of this fungus was considered to be a colonization with subclinical development. In these patients no fungal invasion or systemic mycosis were seen. The administration of itraconazole for 4 respectively 7 months did not succeed in eliminating E. dermatitidis out of the respiratory tract. It is recommended to include mycological longtime cultures in the surveillance of cystic fibrosis patients for detection of E. dermatitidis.