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Marginal zone
Part of the spleen / From Wikipedia, the free encyclopedia
For the marginal zone in cortical development, see Cerebral cortex § Layer organisation.
The marginal zone is the region at the interface between the non-lymphoid red pulp and the lymphoid white-pulp of the spleen. (Some sources consider it to be the part of red pulp which borders on the white pulp, while other sources consider it to be neither red pulp nor white pulp.)
A marginal zone also exists in lymph nodes.[1][2]