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Extranodal marginal zone lymphoma: a case report and review of the literature.

The World Health Organization (WHO) defines extranodal marginal zone lymphoma (MZL) as an indolent B-cell lymphoma. This disease involves a heterogeneous group of B-cell tumors that occurs primarily within the lymph nodes, spleen, or extranodal tissues. Initial MZL treatment consists of chemotherapy and/or radiotherapy and is associated with a high survival rate when detected early. This article highlights an unusual case of extranodal MZL in the parotid area.