Metachronous lesions in the orbit, retroperitoneum, and pleura of mucosa-associated lymphoid tissue lymphoma: A case report

Background Mucosa associated lymphoid tissue (MALT) lymphoma of the orbit is rare, often indolent, but can recur, and spread to extra-nodal sites. Pleural and retroperitoneum recurrences of MALT lymphoma are rare. Case A 65-year-old man was referred to our hospital due to right pleural effusion and difficulty in breathing. He had a medical history of having undergone surgery for MALT lymphoma of the left orbit. A chest computed tomography (CT) scan showed right pleural thickness, pleural effusion, and a retroperitoneal mass, spreading from the muscular layer to the subcutaneous layer. The thickened pleural lesion was surgically biopsied and diagnosed as a recurrence of MALT lymphoma. Conclusion Pleural effusion should be carefully examined and monitored for the possibility of recurrence in MALT lymphoma patients.

Automated summary

This article reports a case of multi-site recurrence in a patient with MALT lymphoma of the orbit. The thickened lesion in the pleural effusion suggested the possibility of recurrence and further diagnosis was performed.