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A 54-year-old man presented with progressive dyspnoea and non-productive cough for 2 months. A physical examination revealed diminished breath sounds and dullness to percussion on the right side. A preoperative chest radiograph for elective left knee arthroplasty 2 months prior to this presentation showed a 16 mm nodule in the right middle lung field (figure 1A).
A CT pulmonary angiogram obtained 1 month after left knee arthroplasty for the complaint of dyspnoea did not reveal pulmonary embolism, however, a well-circumscribed, homogeneous 5.2 cm pleural-based mass was found in right lower haemithorax (figure 1B). A …
RI and HC are joint first authors.
RI and HC contributed equally.
Contributors HC and RI are leading first authors with equal contributions. HC is the corresponding author. AC is the senior author of the manuscript. HC and RI are involved in the planning, conducting, reporting, conception and design of the manuscript. All authors contributed to the writing of the manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Provenance and peer review Not commissioned; externally peer reviewed.
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