We report a case of Penicillium mameffei infection in a previously hea
lthy 3.5 years-old Chinese boy and review the literature. The details
of the case are described with emphasis on his immune function and tre
atment outcome. This boy had transient immunodeficiency involving phag
ocytic and NK cells due to P. mameffei infection which resolved after
treatment with gamma interferon and amphotericin B. A prolonged course
of fluconazole of 1 year was successful in preventing relapse. Gamma
interferon, amphotericin B and a prolonged course of fluconazole may b
e useful in the treatment of life-threatening infection by P, marneffe
i.