Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right chest tube remains in position with a small amount of associated subcutaneous emphysema at the entry site in the right lower thoracic wall . Slight interval increase in the size of the known right apical pneumothorax . No focal pulmonary consolidation , pleural effusion , or pulmonary edema . The cardiomediastinal silhouette , hila , and pleural are normal and unchanged . No new acute osseous abnormality . No sub - diaphragmatic intra-abdominal free air .
    OUTPUT:
    
Slight progression of the right apical pneumothorax despite the presence of a right chest tube .