Magnusiomyces capitatus may cause uncommon yet severe infections, especially in patients with haematologic disorders. Diagnosis may be difficult and time-consuming and newer approaches are required including the MALDI-TOF technique implemented with the detection of fungal antigens in the body fluids. The recommended treatment includes amphotericin B alone or in combination with flucytosine. We describe a case of a non-neutropenic patient with M. capitatus pleural infection, as identified by MALDI-TOF, positivity for galactomannan antigen in the BAL fluid, and successfully treated with oral posaconazole in single therapy.
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