SMARCA4-deficient undifferentiated thoracic tumor: A case report

Figure 1 Imaging results. A: The posteroanterior view of the chest radiograph shows a lesion of dense consolidation in the left lower pericardial area and calcific nodules consistent with an old tuberculosis scar in both upper lobes. Computed tomography reveals a huge mass with necrosis involving the upper and lower lobes of the left lung with invasion of the pericardium; B: Several enlarged mediastinal lymph nodes are exhibited; C: Left lung lesion with pericardial invasion is identified; D: Right liver lobe shows a metastatic tumor; E: An approximately 9-cm sized left lung lesion shows uneven 18F-fluorodeoxyglucose uptake on the positron emission tomography (PET) scan. Further, the PET scan shows numerous metastatic lesions involving the mediastinum (left paratracheal, left cardiophrenic, and celiac lymph nodes); liver; bilateral lung lobes; bones of the skull, bilateral humeri, scapula, left clavicle, sternum, vertebras (cervical, thoracic, lumbar), bilateral ribs, pelvis, and bilateral femurs; peritoneum; and retroperitoneum.