PMC3920411_01
CXR: Frontal view showing RUL collapse (s sign of gold).
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Chest X-ray (Fig. 1) revealed collapse of the right upper lobe (RUL).
CT chest. 2A (left) coronal section 2B (cross-sectional image) of the chest showing RUL mass abutting right upper lobe bronchus and right main stem causing right upper lobe collapse.
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CT scan of the chest (Fig. 2A and B) showed a 4 x 3.7 x 4 cm3 mass with areas of calcification abutting and compressing the right upper lobe bronchus with atelectasis of the RUL.
CXR Re-expansion of the RUL.
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Repeat CXR (Fig. 3) and CT scan (Fig. 4) after three months of initiation of chemotherapy showed re-expansion of the right upper lobe and replacement of the mass with large air filled cystic space that communicated with right main stem bronchus and bronchus intermedius.
CT chest: Cyst is smaller in size.
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Most recent CT scan after 18 months of chemotherapy (Fig. 5) showed a further decrease in the size of the cystic lesion.