Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show stable dense calcifications within the left humeral head consistent with bone infarction or less likely a calcified enchondroma also seen on prior CT . Kyphosis and mild degenerative changes are noted within the thoracic spine . The lungs are clear without focal consolidation , pleural effusion , or pneumothorax . The pulmonary vasculature is not engorged . The cardiomediastinal silhouette is within normal limits with an unfolded thoracic aorta and mild tortuosity .
    OUTPUT:
    
1 ) No acute cardiopulmonary process . 2 ) Stable appearance of left humeral head bone infarction or less likely calcified enchondroma .