PMC9083800_01
CT scan of the chest with IV contrast (A) Axial image shows a proximal right middle lobe bronchus hypodense lesion (arrow). (B) The lesion displays negative Hounsfield units (-90 HU) consistent with fat component.
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CT scan of the chest revealed a hypodense lesion in the right middle lobe bronchus with negative Hounsfield values consistent with the macroscopic fat component (Figure 1A). Subsequently, endobronchial ultrasound (EBUS) was indicated, where a right middle lobe mass was found with 99% obstruction (Figure 1B).
Pathology Report (A): H&E, 10X; Ciliated bronchial epithelium (arrow) with endobronchial glands and interspersed adipocytes. (B): H&E, 20X; Mature adipocytes, endobronchial glands and endobronchial vessels (arrow).
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Histopathologic examination revealed ciliated bronchial epithelial lining underneath endobronchial glands and mature adipose tissue with no cartilaginous structure (Figure 2).