Clinical-radiological dissociation in lung manifestations of paracoccidioidomycosis

Lungs are among the main sites affected by paracoccidioidomycosis. However, the alterations are not always easy to differentiate from other respiratory disorders. The objectives of the present study were to investigate the frequency of lung impairment in paracoccidioidomycosis cases and to investigate whether any clinical-radiological association exists. A retrospective study was carried out from March 1996 to November 2006, among patients with paracoccidioidomycosis at the Regional University Hospital of Maringa, Parana, Brazil. Over this period, 45 cases were confirmed, of which 79.5% presented radiological abnormalities on chest X-rays, and four of them also presented pulmonary tuberculosis. Out of the total of 40 patients with paracoccidioidomycosis alone, 57.5% presented respiratory clinical manifestations, whereas 77.5% presented radiological abnormalities, thus demonstrating clinical-radiological dissociation. On the other hand, 80.6% of the patients who presented radiological abnormalities said that they smoked. We concluded that although morphological abnormalities in the lungs are frequent, they do not always correspond to respiratory signs and symptoms and cannot easily be attributed exclusively to paracoccidioidomycosis.