Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . An incompletely marginated round 1 .2 cm diameter opacity is present in the periphery of the right upper lung , at the level of the intersection of the right fourth anterior and seventh posterior ribs . Lungs are otherwise clear , and there are no pleural effusions or acute skeletal findings .
    OUTPUT:
    
1 . No CT findings to suggest the presence of pneumonia . 2 . 1 .2 cm opacity in right upper lung as described , possibly representing a skin lesion or a structure external to the patient . Recommend initial further evaluation with repeat chest radiograph . If the patient has a skin lesion on the right chest wall , a marker could be placed on this region at the time of followup radiograph to assist in localization . Findings entered into radiology communications dashboard on date of study .