PMC9709110_01
Chest CT scan showed left pleural effusions and linear opacity.
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F1
A computed tomographic (CT) scan of the thorax demonstrated left pleural effusions and linear opacity (Figure 1).
Thoracoscopy demonstrated amounts of white nodules on the pleurae.
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F2
To clarify the cause of pleural effusion, video-assisted thoracoscopy was performed and revealed a myriad of white nodules on both the visceral and parietal pleura, as well as on the diaphragm (Figure 2).
Histologic finding of non-caseating granulomas (hematoxylin-eosin, original magnification x 400).
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F3
Histological examination of the pleural biopsy sample demonstrated non-caseating granulomas and real-time quantitative polymerase chain reaction (PCR) for mycobacterium tuberculosis was negative (Figure 3).
Follow-up chest CT showed a complete withdrawal of the left pleural effusion.
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F4
All complaints regressed 2 weeks later and a follow-up CT 4 weeks later exhibited the left pleural effusion almost disappeared (Figure 4).