{Reference Type}: Case Reports {Title}: Malassezia furfur bloodstream infection: still a diagnostic challenge in clinical practice. {Author}: Petruccelli R;Cosio T;Camicia V;Fiorilla C;Gaziano R;D'Agostini C; {Journal}: Med Mycol Case Rep {Volume}: 45 {Issue}: 0 {Year}: 2024 Sep 暂无{DOI}: 10.1016/j.mmcr.2024.100657 {Abstract}: The opportunistic fungus Malassezia furfur (M. furfur) can cause either cutaneous or systemic infections. We report a case of M. furfur fungemia in a 22-year-old male with T-cell Acute Lymphoblastic Leukemia (T-ALL) who developed concomitant Bacillus cereus (B. cereus) septicemia. The fungal infection was diagnosed by microscopic examination and culture-based methods, while automated blood culture systems and molecular approaches failed in identifying the fungus. Despite appropriate therapy, the patient died 18 days after the hospitalization.