CTICasesSarcoidosis
Imaging findings
Chest CT shows innumerable, tiny pulmonary nodules in a symmetric distribution. The nodules are clustered along the fissures, subpleural surfaces, and bronchovascular bundles (peri-lymphatic distribution), associated with mediastinal and hilar lymphadenopathy.
Key takeaways
Pulmonary sarcoidosis can present with innumerable tiny nodules, mimicking a random/miliary pattern. Close inspection typically reveals clustering of nodules along the pleural surfaces, fissures, and bronchovascular sheaths, confirming a characteristic peri-lymphatic rather than random distribution.
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