Revisions to the Tumor, Node, Metastasis staging of lung cancer (8th edition): Rationale, radiologic findings and clinical implications

Figure 9 M descriptors. A: M1a: Nodular large heterogeneously enhancing right pleural mass like thickening (arrows) with mediastinal invasion (black arrowheads) and small right pleural effusion (white arrowhead) due to metastatic NSCLC; B: M1c: Two sclerotic metastases to thoracic spine (T3 and T9, arrows) from lung cancer; C: M1c: Multiple extrathoracic lung cancer metastases to the retroperitoneum (yellow arrows), right adrenal gland (white arrow), and spleen (blue arrow). Note the presence of malignant ascites (yellow arrowhead).