대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Courtesy

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Imaging Findings

Chest radiographs: A well-defined, 9 cm in long diameter, lobulated contoured mass opacity in left anterior mediastinum.
Chest CT scan: A well-defined, cystic lesion with irregular calcified rim in left anterior mediastinum.

The large cystic lesion was considered as anterior mediastinal lesion radiologically, but the lesion was intrapulmonary lesion in operation and pathology..

Discussion

Bronchiectasis in postprimary tuberculosis can develop by two mechanisms:
1) Destruction and fibrosis of lung parenchyma, resulting in retraction and irreversible bronchial dilation.
2) Cicatricial bronchostenosis secondary to localized endobronchial infection, resulting in obstructive pneumonitis and distal bronchiectasis.

Keywords

Lung, Airway, Infection, Tuberculosis,