Cutaneous lymphomas: emerging concepts.

The article focuses on the study of F. van Maldegem and colleagues on the difference of primary cutaneous marginal zone B-cell lymphoma (PCMZL) to other extranodal MZL. It states that the report suggests that PCMZL lacks CXCR3 and demonstrates class-switched immunoglobulin and occasional dual isotypes. It cites the differences between PCMZL and mucosa-associated lymphoid tissue (MALT) lymphomas and concludes that PCMZL is part of the broad group of extranodal MZL.