Periarterial lymphatic sheath

Definition

The area of the spleen in which T cells surround the central arteriole.

Also known as PALS, periarterial lymphoid sheath, periarteriolar sheath, spleen periarteriolar lymphatic sheath, T cell domain of the splenic white pulp — per UBERON

The Periarterial lymphatic sheath is a part of the Immune/Lymphatic.