Clinical Presentation
A 72-year-old woman with cough.
Imaging Findings
Contrast-enhanced computed tomography demonstrates a well-circumscribed 2-cm pulmonary nodule in the left lower lobe (arrow).
Differential Diagnosis
• Inflammatory myofibroblastic tumor: This most commonly presents as a solitary, peripheral, sharply circumscribed mass. The imaging features are, however, variable and nonspecific.
• Granuloma:
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