CTICasesInflammatory Myofibroblastic Tumor
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Imaging findings
A large, rounded, heterogeneous mass was present in the basal right hemithorax, with adjacent atelectasis and a small pleural effusion. The mass was FDG avid. In a second patient, a similar mass also showed variable attenuation, enhancement, and curious cavitation, intimately associated with the pleura.
Key takeaways
Inflammatory myofibroblastic tumor (IMT) should be considered in the differential diagnosis of a large chest mass in a young patient. While some cases can have a good prognosis with surgical removal, others can be aggressive, demonstrating extensive local recurrence and distant metastases (e.g., cerebral metastases). Some IMTs are known to be ALK-positive.
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