CTICasesMinute Pulmonary Meningothelial-Like Nodules
Imaging findings
Chest CT in an asymptomatic patient shows multiple well-defined, random ground-glass nodules distributed throughout both lungs, some showing airway-centricity and others located along the fissures. Several of the larger nodules feature subtle, tiny lucent centers.
Key takeaways
Minute pulmonary meningothelial-like nodules (MPMNs), also known as pulmonary meningotheliomas, are benign, typically asymptomatic interstitial lesions that are often found incidentally on thoracic CT. They present as tiny, well-defined ground-glass nodules that may have central lucencies, and they require no further workup or treatment.
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