Pulmonary extranodal marginal zone B-cell lymphoma of mucosa-associated lymph tissue: A case report and literature review.

Extranodal marginal zone B-cell lymphoma of mucosa-associated lymph tissue (MALT lymphoma) is a rare subtype of marginal zone B-cell lymphoma. Most primary MALT lymphoma occurs in the stomach, while lung is an uncommon site of MALT lymphoma. We herein report a case of MALT lymphoma in a 44-year-old female who underwent a pulmonary lobectomy and received rituximab plus CHOP chemotherapy regimen. The patient had an uneventful postoperative course and a good prognosis without tumor recurrence for 3 years.