Figure 10­27
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This image provides a distinction between the areas of white pulp (A) and red pulp (B). A part of a trabecula (C) can
Holdings,
also be identified.
Branches of the trabecular artery enter the splenic pulp and are associated with lymph nodules. These arteries are of-
LLC.
ten placed in an eccentric position with respect to the nodules (arrowhead). The splenic nodules displaced in relation
Not
to the arteries are the realm of B-lymphocytes, their precursors and their derivatives. The lymphocytes that occupy
to
the adventitia of the arteries are T-lymphocytes that form the periarterial lymphatic sheaths (PALS). T-lymphocytes
be
are also located in the marginal zone at the periphery of the splenic nodules.
redistributed
The dense connective tissue capsule (arrow) is also well illustrated in this image. Note the single layer of mesotheli-
um at the outer surface of the organ (curved arrow). These cells constitute the reflection of the visceral peritoneum
or
over the splenic surface.
modified
in
any
way
without
permission.
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