Nodal marginal zone B cell lymphoma

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| name = Nodal marginal zone B cell lymphoma

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| field = Hematology, oncology

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Nodal marginal zone B cell lymphoma (NMZL) is an uncommon form of marginal-zone lymphoma{{cite journal |vauthors=Ferreri AJ, Zucca E |title=Marginal-zone lymphoma |journal=Crit. Rev. Oncol. Hematol. |volume=63 |issue=3 |pages=245–56 |date=September 2007 |pmid=17583528 |doi=10.1016/j.critrevonc.2007.04.009 }} that can produce colonization of the follicles in the lymph node.{{cite journal |author=Naresh KN |title=Nodal marginal zone B-cell lymphoma with prominent follicular colonization - difficulties in diagnosis: a study of 15 cases |journal=Histopathology |volume=52 |issue=3 |pages=331–9 |date=February 2008 |pmid=18269584 |doi=10.1111/j.1365-2559.2007.02951.x |s2cid=205299373 }}{{cite journal |author=Kojima M |title=Follicular colonization of nodal marginal-zone B-cell lymphoma resembling follicular lymphoma: report of 6 cases |journal=Int. J. Surg. Pathol. |volume=13 |issue=1 |pages=73–8 |date=January 2005 |pmid=15735858 |doi=10.1177/106689690501300110 |name-list-style=vanc |author2=Nakamura S |author3=Murase T |display-authors=3 |last4=Motoori |first4=T. |last5=Murayama |first5=K. |last6=Iijima |first6=M. |last7=Itoh |first7=H. |last8=Sakata |first8=N. |last9=Masawa |first9=N. |s2cid=23552907 }}{{Dead link|date=October 2019 |bot=InternetArchiveBot |fix-attempted=yes }} It is a form of low grade lymphoma with similar incidence in men and women and a mean age of 61 years (range 26–92 years). It is often associated with Sjogren syndrome. It shows interfollicular infiltrate of monocytoid, centrocyte-like B cells that are 2–3× larger than small lymphocytes with partial/total effacement of lymph node architecture.