Diagnosing and Analysing Spheral Tuberculosis of Pulmonary by HRCT

Objective To assess the features and the value of diagnosing of HRCT with Pulmonary Spheral Tuberculosis(PST) Methods The 24 foci in 21 patients with PST were analyzed. Thin-sections at 1.5cm to 3.0cm thickness through the nodular center were obtained with plain and enhanced. Results The 13 foci (54.2%) were located in the lobus superior of pulom dexter, 5 foci (20.8%) in lobus inferior. The 6 foci were located (25.0%) in the lobus superior of pulmo sinister. The size of PST was 1.0cm to 3.8cm. The 18 foci were clear of verge and 6 foci were dim. The 16 foci had statllite focus. The 8 foci had calcification. No enhancement had 15 foci. The capsular enhancement had 8 foci. 1 focus showed extensive enhancement. Conclusion HRCT may show the verge and density of preferable. The change of density after enhancement was helpful in diagnosing and differential diagnosis of the PST.