Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The 1 .3 cm nodule in the right perihilar region was better assessed in prior CT scan was characterized as a hamartoma . No other focal opacities are identified . A hyperdense nodule at the posterior costophrenic angles seen in the lateral view is compatible with a left - sided calcified retrocrural lymph node seen in prior chest CT . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion pneumothorax .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . 1 .3 cm nodule in the right perihilar region was characterized as a hamartoma in a prior CT . A ___ year followup examination was recommended more than one year ago which the patient has not undergone at least at this institution and should be performed on a nonemergent basis .