CTICasesMALT Lymphoma of the Lung
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Imaging findings
Initial radiograph showed a questionable left upper lobe nodule. CT revealed a classic ill-defined mass with air bronchograms in the left upper lobe, and a consolidative appearance with subtle thickening and ground glass in the right upper lobe, presumed to be MALT lymphoma. Follow-up PET/CT demonstrated significant hypermetabolic activity in both lesions, with the right upper lobe mass becoming much larger. Post-treatment, both hypermetabolic activity and lesion size decreased significantly.
Key takeaways
MALT lymphoma can recur in various MALT locations, presenting in the lung as an ill-defined mass with air bronchograms or consolidative/ground-glass opacities. The disease typically responds well to chemotherapy, such as rituximab.
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