Answer

Collapse of the left lung

There is almost total collapse of the left lung, due to an underlying bronchogenic malignancy. Note the volume loss with shift of the mediastinum to the affected side (Table 1.15).

Table 1.15 Causes of opaque hemithorax

■ Lung collapse: volume loss, mediastinal shift towards affected side

■ Pleural fluid: transudate/exudate; empyema; haemothorax; chylothorax

■ Pneumonectomy: look for surgical clips and thoracotomy

■ Tumour: fibrous tumour of pleura; pleural metastases; mesothelioma

■ Extensive consolidation: pneumonia; pulmonary oedema; obstructing neoplasm

■ Lung agenesis

2-week-old neonate.

■ What does the chest X-ray (Fig. 1.79) demonstrate?

Fig. 1.79 Quiz case.

2-week-old neonate.

■ What does the chest X-ray (Fig. 1.79) demonstrate?

Fig. 1.79 Quiz case.

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