CTICasesSecond Endobronchial Inflammatory Myofibroblastic Tumor
Imaging findings
A second young patient, imaged twice two weeks apart, shows progressive left-sided volume loss with obscuration of the left heart border on frontal views; the lateral radiograph shows loss of the expected left main and left upper lobe bronchus contours, and CT confirms an obstructing endobronchial lesion with the classic "tip of the iceberg" appearance causing post-obstructive consolidation and mucus impaction, with resulting hyperlucency of the affected lung from air trapping.
Key takeaways
As with the prior case, this endobronchial mass in a young patient proved to be another inflammatory myofibroblastic tumor rather than carcinoid -- two such cases in young patients within two months, reinforcing IMT as a real differential consideration for a central endobronchial mass with an obstructive pattern on the lateral radiograph.
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