Pulmonary nodule tracking using chest computed tomography in a histoplasmosis endemic area

Published:November 13, 2014DOI:



      In areas with endemic histoplasmosis, incidental pulmonary nodules are common. Rate of malignancy and applicability of current tracking guidelines in these regions remain unclear.


      A total of 148 cases of incidental pulmonary nodules tracked with chest computed tomography were reviewed for radiologic characteristics, diagnosis, number, and size.


      Of the nodules, 87.8% were benign and 12.2% malignant; 30% of nodules >20 mm were malignant. Number of nodules (P=.14) and granulomatous disease (P=.71) were not related to malignant diagnosis.


      Malignancy was lower than expected in nodules >20 mm. Appropriate tracking guidelines for incidentally discovered nodules in histoplasmosis endemic regions must be determined.


      CT (Computed tomography), PET (Positron emission tomography)


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