CTICasesPulmonary Hamartoma
Imaging findings
A large, new, solitary lung nodule with internal calcifications. Initial concerns included potential malignancy, but it demonstrated very low metabolic activity on PET.
Key takeaways
Large pulmonary hamartomas can mimic tumors. Pathologic evaluation is crucial; in this case, TTF-1 expression helped confirm the lung origin of the epithelial elements.
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