paracortex


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par·a·cor·tex

(par'ă-kōr'teks),
The area of a lymph node between the subcapsular cortex and the medullary cords; it consists mostly of long-lived lymphocytes (T cells) derived from the thymus.

paracortex

[-kôr′teks]
the thymus-dependent area of a lymph node between the subscapular cortex and the medullary cord.

paracortex

the thymus-dependent part of the lymph node.
References in periodicals archive ?
Imaging mass spectrometry analysis showed that biologically relevant LPA species (LPA 18:1, 18:2, and 20:4) are expressed in the lymph node paracortex at sites that are either close to or distant from HEVs and that the latter is selectively reduced in mice that are ATX deficient specifically in FRCs, (68) in agreement with the hypothesis that FRCs produce LPA by the ATX on their cell surface.
It is a highly organized structure composed of 4 main anatomic compartments: the cortex, paracortex, medulla, and sinuses (Figure 1, A).
Histologic analysis of the lymph node showed intact architecture with an expanded paracortex consisting almost entirely of blasts forms immunohistochemically consistent a T/myeloid mixed phenotype acute leukemia.
Structurally, a lymph node can be divided into three roughly concentric regions: cortex, paracortex, and medulla, each of which supports a distinct microenvironment.
The lymph nodes in KFD exhibit a proliferative and/or necrotizing process that is often centered in the paracortex.
Dermatopathic lymphadenopathy is characterized by an expanded paracortex with small lymphocytes and scattered Langerhans cells and histiocytes, sometimes accompanied by pigment.
Multinucleate polykaryocytes were prominent in the germinal centers and in the paracortex.
Normal lymph nodes are composed of cortex, paracortex, and medulla.
Activation-induced cytidine deaminase shows staining in the centroblasts of the germinal center, with scattered large cells in the paracortex (Figure 6, C).
The initial proliferative phase features an expanded paracortex with increases in various histiocytes and plasmacytoid dendritic cells, which are admixed with a variable number of lymphocytes and karyorrhectic nuclear debris.