Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single supine AP portable view of the chest was obtained . Endotracheal tube is seen , terminating approximately 3 .9 cm above the level of the carina . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . Possible small subcentimeter calcified right base nodule may represent a calcified granuloma . Cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Endotracheal tube in appropriate position . No acute cardiopulmonary process .