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Question

 In the fine axial section obtained from patient in upper, middle and lower lung zone with 1mm thickness with parenchymal 

 

on inspiratory phase:

.Parenchymal band with focal bronchiectasia in apical segment of left upper lobe is seen

Focal centrilobular nodule with tree in bud apperience in posterior segment of right upper lobe and apical segment of left lower lobe is depicted.

Above findings are nonspecific. for better review, follow up CT.scan after empirical theraphy is recommended.

There are normal branching pattern of vessels and bronchi as well as normal bronchoarterial diameter ratio.

No evidence of bronchiectasis or emphysematous change is seen.

There is no evidence of air space - interstitial or cystic lung disease.

No mass lesion or other abnormalities was seen.

Pleural effusion was not seen.

 

On expiratory phase:

No evidence of air trapping or small air way disease is depicted.

 

*It is obvious that important role of HRCT investigates interstitial lung disease, thus for assessment of other paranchymal abnormalities (especially mass lesion, midiastinal adenopathy,...) spiral C.T.scan of thorax is method of choice.