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Bronchial carcinoid — SCE Respiratory MCQ

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HardLung CancerBronchial carcinoidSCE Respiratory

A 45-year-old woman has recurrent pneumonia in the same lobe and intermittent wheeze. CT shows a well-defined enhancing endobronchial lesion in the right main bronchus; biopsy shows neuroendocrine tumour with low mitotic index. What is the most likely diagnosis?

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Correct answer: C — Typical bronchial carcinoid

A central endobronchial neuroendocrine tumour with low mitotic index causing recurrent post-obstructive infection is typical bronchial carcinoid. Small-cell cancer is high grade with marked mitotic activity. Aspergillosis and sarcoidosis would not produce a discrete enhancing endobronchial neuroendocrine lesion.

Reference: NICE NG122 Lung Cancer; WHO Thoracic Tumour Classification