Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Approximately 1 cm x 0 .8 cm rounded homogeneous well defined nodule projecting over the left apex . No additional focal opacity , pleural effusion , pulmonary edema , or pneumothorax . Heart size , mediastinal contour and hilar normal . No bony abnormality .
    OUTPUT:
    
Left apical nodule , which may be internal or external to the patient . Repeat radiograph without overlaying clothes , and if still present , consider CT for further characterization . Results conveyed via critical results by Dr .___ on ___ .