Objective To observe the manifestations of pulmonary cryptococcosis(PC)on CT and assess its diagnostic value. Methods The CT data of 30 patients with histologically proved PC were retrospectively reviewed. Results The CT findings were:20cases manifested shadow of nodules or masses,two cases appeared shadow of foliated effusion,and eight showed mixed type shadow.Nodules or masses were observed mainly in patients with normal immune function,and those with immunocompromice mainly showed foliated or mixed shado...