Bronchus-associated B-cell lymphoma occurring after radiation and chemotherapy for head and neck Merkel cell carcinoma.

摘要

Majority of extranodal marginal zone lymphomas (MZL) are seen in the stomach in mucosa-associated lymphoid tissue (MALT) due to chronic gastritis following infection by Helicobacler pylori . In contrast however, MZL lymphomas of the bronchial-associated lymphoid tissue (BALT) are exceedingly uncommon and are usually associated with autoimmune diseases or long-standing inflammatory conditions . Rarely, MALT lymphomas have been described in the setting of immunosuppression [1, 2]. Similarly, skin tumors like Merkel cell carcinoma (MCC) have also been seen after therapeutic immunosuppression post solid organ transplantation .