Abstract
Host factors and clinical characteristics in five patients with respiratory mucor infection in the last five years were studied. From the point of host factors, the mechanism of mucor infection to the lung was classified into three groups as primary, secondary, and saprophytic infection. One out of the 5 was primary, 2 were saprophytic, and the remaining 2 were secondary mucor infections. The primary mucor mycosis case was an asymptomatic 52-year-old man without any predisposing factors and discovered by annual chest X-ray survey.
The 2 saprophytic mucor infection cases had previous cystic lung lesions from tuberculosis. Secondary mucor infection occurred in two leukemic patients with administration of large doses of steroids, anti-cancer drugs, and antimicrobs. We stressed in this paper the type and relatively good prognosis of saprophytic pulmonary mucor infection.