CTICasesPulmonary Marginal Zone Lymphoma
Imaging findings
Chest radiograph and CT show a new, well-circumscribed, slightly lobulated nodule/mass in the medial right middle lobe of an 80-year-old female. PET scan shows very low FDG avidity. CT-guided biopsy confirmed marginal zone B-cell lymphoma (MALT lymphoma).
Key takeaways
Pulmonary MALT lymphoma can present as a solitary, slowly growing mass. They typically have very low FDG avidity on PET, and can often be managed conservatively with observation in elderly, asymptomatic patients.
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