CTICasesAtypical carcinoid
Imaging findings
Chest CT shows a well-defined endobronchial soft tissue mass in the right lower lobe bronchus causing bronchial obstruction, which was diagnosed as atypical carcinoid based on histopathology showing high mitotic activity.
Key takeaways
Bronchial carcinoids are neuroendocrine tumors divided into typical (low grade) and atypical (intermediate grade, higher mitotic rate). Atypical carcinoids are more aggressive, and histopathological evaluation is critical for differentiation.
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