We herein describe an asymptomatic 31-yearold male who was admitted for an investigation of an abnormal pleural tumor detected by chest radiography. We performed various preoperative investigations including fluorodeoxyglucose- positron emission tomography. The maximum standardized uptake value (SUVmax) was 2.2, and malignancy could not be ruled out. We therefore carried out a thoracoscopy-assisted partial resection of the right upper lobe combined with a parietal pleurectomy. The pathological examination showed that there was a tumor localized with pleural amyloidosis.
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