PMC5896288_01
(a-d) Computed tomography showed tumor with eggshell calcification of the thyroid left lobe and multiple lung metastases. There were no bulla and bleb.
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fig1
Computed tomography (CT) findings suggested thyroid cancer with lung metastases, and he visited our hospital (Figure 1).
(a, b) Follow-up computed tomography on day 34 of lenvatinib start showed the right pneumothorax and the air was recognized inside a part of lung metastases (arrow).
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CT showed right pneumothorax, and air was observed inside part of the lung metastases (Figure 2).
(a-d) Computed tomography on day 73 of lenvatinib start showed that primary tumor was stable disease and there is no recurrence of pneumothorax. Thin wall cavitations were observed in the metastatic lesions (arrow).
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fig3
CT of the primary tumor on day 73 of lenvatinib treatment showed stable disease, and the thin-walled cavitations were observed in the metastatic lesions (Figure 3).