marginal sinus

Also, CD68 + smaller round cells considered to be monocytes often developed intravascularly in ileal lamina propria and lymph node pulpa as well as in marginal sinuses.

The subcapsular sinus (lymph path, lymph sinus, marginal sinus) is a region within the lymph node immediately deep to the capsule that contains relatively sparse lymphocytes.

Mature B cells from the spleen can be divided into two main populations: FO B cells, which constitute the majority, and marginal zone B-cells, lining outside the marginal sinus and bordering the red pulp.