Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is known with metastatic melanoma to the lungs . Left upper lobe complete collapse with hilar and mediastinal mass is unchanged . Fiducial marker is stable projecting on the left side of lower trachea in the mediastinum . Right lung is unremarkable . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patient is known with metastatic melanoma and complete left upper lobe collapse on left hilar and mediastinal mass . Fiducial marker projecting in mid mediastinum on the left side of the trachea is unchanged .