CTICasesNecrotizing sarcoid granulomatosis
Imaging findings
Chest CT shows a lacy, perilymphatic pattern of small nodules in the mid-lungs and a large, cavitating upper lobe nodule abutting the fissure. Resection confirmed necrotizing granulomas in a setting consistent with sarcoidosis, which remained stable over several years of follow-up.
Key takeaways
Although sarcoidosis is characteristically defined by non-necrotizing granulomas, necrotizing granulomas can rarely be seen on pathology (necrotizing sarcoid granulomatosis). This variant can manifest radiographically as cavitating nodules or masses, mimicking infectious granulomatous disease.
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