PMC8429958_01
Chest computed tomography image showing a 2-cm solitary nodule along the major fissure in the middle lobe of the right lung (S4).
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Chest computed tomography revealed a nodular shadow in the middle lobe of the right lung (Fig. 1).
Histological findings. The solitary nodule had several granulomas with caseous necrosis (arrow) surrounded by epithelioid cells; multinucleated giant cell infiltration (circle) was also observed (hematoxylin and eosin stain).
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Thoracoscopic partial lobectomy was performed on the second day of hospitalization, and rapid intraoperative pathological examination revealed a granulomatous lesion with caseous necrosis (Fig. 2).