Dry pleural dissemination of malignancy diagnosed by aggressive thoracoscopy

Determination of pleural dissemination of lung cancer helps define the treatment strategy. Positron emission tomography-computed tomography imaging could be false-negative for dry pleural dissemination of lung cancer. Clinicians should consider preoperative thoracoscopy in affected patients showing limited pleural effusion, interlobar fine granular shadows, and no metastasis on high-resolution computed tomography.