Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single upright frontal chest radiograph was obtained . A left - sided chest tube has been removed . There is a miniscule residual left apical pneumothorax . Retrocardiac opacity is compatible with residual atelectasis . The positions of an endotracheal tube , enteric catheter , and Swan - Ganz catheter are unchanged . There is no pulmonary consolidation , effusion , or pneumothorax . Central pulmonary vascular congestion is mild .
    OUTPUT:
    
Miniscule left apical pneumothorax status post chest tube removal .