CTICasesPulmonary Meningothelial-Like Nodules (MMLNs)
Imaging findings
Very small, poorly defined, ground-glass attenuating lung nodules with discreet walls are observed, some showing a 'micro Cheerio' appearance with small central lucencies.
Key takeaways
Pulmonary meningothelial-like nodules (MMLNs) are benign, asymptomatic findings that can be incidentally detected. Their characteristic imaging features (small, poorly defined, ground-glass, 'micro Cheerio' appearance) can mimic more serious pathology like metastases or adenocarcinoma, but recognition can obviate unnecessary biopsies.
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