Epithelial reticular cell
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Epithelial reticular cells (or epithelioreticular cells) are a structure in both the cortex and medulla of the thymus. However, histologically, they are more easily identified in the cortex. These cells contain secretory granules which are thought to contain the thymic hormones.
There are six different types: Types 1-3 are in the cortex, and types 4-6 are in the medulla.

