Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is interval development of a 3 .7 cm partially circumscribed mass in the left upper lung . Lung markings are visible through the lesion . The lungs are otherwise clear . There is no pleural effusion or pneumothorax . Cardiomediastinal silhouette is stable . There is progressive loss of height associated with midthoracic vertebral body as compared to the prior study .
    OUTPUT:
    
1 . Interval development of a 3 .7 cm elliptical opacity in the mid left upper lung . The incomplete sharp borders suggest an extra pulmonary process located in either the pleura or chest wall . CT is recommended for further evaluation to exclude a malignant lesion . 2 . Interval progression of loss of height of a mid thoracic compression fracture .