Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Calcified 3 cm oval shaped density in the left para trachea supraclavicular area may reflect a calcified left thyroid nodule in this patient with previous history of multi nodule goiter considering history of a dominant calcified left thyroid nodule in ___ thyroid ultrasound . Lungs and pleural surfaces are clear .
    OUTPUT:
    
1 . No lung parenchymal abnormalities to account for cough . 2 . 3 cm calcified density in the left peritracheal region , possibly corresponding to a large calcified thyroid nodule in this patient with history of multinodular goiter .