The increasing incidence of opportunistic mycoses and its relationship to neutropenia was first noticed in the 1960s (l). During the subsequent decade, several institutions reported on the increasing occurrence of disseminated fungal infections in cancer patients undergoing cytotoxic Chemotherapy (2, 3). Although most of those infections were due to Candida or Aspergillus spp., Several other fungal species have recently emerged as clinically important pathogens. These Species include Fusarium spp., Scopulariopsis Spp., Pseudallescheria boydii, Curv~darit~ spp., Maiassezia furrier, and others (4). In tl~is issue of the journal, Martinez-Lacasa et al. (5) and Girinertia e t a l , (6) report on another important emerging fungal species Trichosporon spp. as a causative agent of invasive mycoses (5, 6).