CTICasesMycobacterium Xenopi Nodule
Imaging findings
CT shows a new, rapidly growing pulmonary nodule with central cavitation and internal debris, biopsy showing necrotizing granulomas and culture growing Mycobacterium xenopi.
Key takeaways
Mycobacterium xenopi is a slow-growing nontuberculous mycobacterium (NTM) that can cause cavitating pulmonary nodules or consolidations, especially in patients with pre-existing lung disease, mimicking tuberculosis or fungal infection.
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