CTICasesMALT Lymphoma with Pulmonary Cysts
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Imaging findings
The patient initially presented with a very large abdominal mass. A chest CT revealed a few well-circumscribed cysts in the left upper lobe, left lower lung, and right lower lobe.
Key takeaways
Pathology of the abdominal mass revealed a lymphoma, specifically a monoclonal B-cell proliferative process (MALT lymphoma). The pulmonary cysts are thought to be associated with this lymphoproliferative disorder. The deposition of immunoglobulin-derived protein by plasma cells in the lung, often associated with lymphoplasmacytic proliferative processes, is a described mechanism for producing cystic spaces.
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