CTICasesBronchial Carcinoid Tumor
Imaging findings
Chest radiograph and CT show a large, well-defined, enhancing endobronchial mass within the right bronchus intermedius, causing complete obstruction. This leads to classic obstructive right lower and right middle lobe atelectasis, with rotation and depression of the right hilum and obliteration of the right hemidiaphragm. Biopsy confirms an atypical bronchial carcinoid tumor.
Key takeaways
Bronchial carcinoid tumors are low-grade malignant neuroendocrine tumors that typically arise in the central airways. Endobronchial carcinoids present with signs of airway obstruction, including recurrent pneumonia, hemoptysis, and lobar atelectasis. They are divided into typical (low-grade, less aggressive) and atypical (intermediate-grade, more prone to nodal metastasis) types, which guides the extent of surgical resection.
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