FDG PET/CT in a Case of Thoracic SMARCA4-Deficient Undifferentiated Tumor.

Guo, Jia; Liao, Zhongjian; Chen, Qing; Dong, Aisheng; Huang, Mouqing · Clin Nucl Med · 2023

case_report · Level V

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Abstract

Thoracic SMARCA4-deficient undifferentiated tumor is a rare, newly recognized poorly differentiated tumor with poor prognosis. FDG PET/CT findings of thoracic SMARCA4-deficient undifferentiated tumor are rarely reported. We describe FDG PET/CT findings in a case of thoracic SMARCA4-deficient undifferentiated tumor. The tumor presented as a pleural mass, destroyed the adjacent ribs, and showed intense FDG uptake with SUV max of 12.7. This case indicates that thoracic SMARCA4-deficient undifferentiated tumor should be included in the differential diagnosis of FDG-avid pleural lesions.

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