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Related Concept Videos

Primary Lymphoid Organs01:16

Primary Lymphoid Organs

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Primary lymphoid organs are pivotal in the formation, development, and maturation of lymphocytes, the white blood cells that serve as the backbone of our immune system. This crucial function underscores their fundamental role in maintaining our overall health and immunity. The two primary lymphoid organs of prime importance are the red bone marrow and the thymus.
The red bone marrow is a soft, spongy tissue nestled in the interior of long bones such as the humerus and femur. It is the site...
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Secondary Lymphoid Organs01:15

Secondary Lymphoid Organs

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Secondary organs, including lymph nodes, the spleen, and mucosa-associated lymphoid tissue (MALT), work harmoniously to protect us from disease and infection.
The spleen is a vital organ in the lymphatic system, nestled in the upper left side of the abdomen. It is composed of two primary regions: the red pulp and the white pulp, each having distinct functions. The red pulp performs a significant role in blood filtration. It efficiently purges the blood of old or damaged red blood cells and...
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Lymphoid Cells and Tissues01:18

Lymphoid Cells and Tissues

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Lymphoid cells and tissues are integral to the immune system, which is crucial in maintaining our body's defense against harmful pathogens. They form the building blocks of lymphoid organs, which include the spleen, thymus, and lymph nodes.
Lymphoid cells consist of various types of immune system cells. These include B and T lymphocytes, which are responsible for producing antibodies and killing infected cells, respectively. Dendritic cells act as messengers between the innate and adaptive...
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Disorders of Leukocytes01:27

Disorders of Leukocytes

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Leukocyte disorders can lead to either leukopenia, characterized by an abnormally low leukocyte count, or leukocytosis, marked by a very high leukocyte number.
Leukopenia may result from bone marrow disorders, autoimmune diseases, and infectious diseases. For example, conditions such as multiple myeloma and aplastic anemia can impair the bone marrow's ability to produce adequate leukocytes. Similarly, autoimmune diseases like lupus and viral infections such as HIV can prompt the immune...
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Detailed Structure and Function of Lymph Nodes01:23

Detailed Structure and Function of Lymph Nodes

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Lymph nodes are bean-shaped structures that cluster along the lymphatic vessels in the inguinal, axillary, and cervical regions. Each node is divided into compartments by a capsule that extends trabeculae inward.
From a histological perspective, lymph nodes can be split into two main areas: the superficial cortex and the deep medulla. The outer cortex is populated by dendritic cells, macrophages, and B lymphocytes, which are densely packed into follicles. When these B-lymphocytes are presented...
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Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

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Lymphatic vessels, known as lymphatics, are crucial in transporting lymph from peripheral tissues to our venous system. This process begins with lymph entering through tiny capillaries that branch through tissues. These capillaries have unique features such as larger diameters, thinner walls, and a distinctive one-way valve system formed by overlapping endothelial cells.
This one-way system allows fluids, solutes, and even pathogens to enter but prevents their return to the intercellular...
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Updated: Oct 23, 2025

Isolation of Human Lymphatic Endothelial Cells by Multi-parameter Fluorescence-activated Cell Sorting
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Ocular lymphoproliferative disorders.

Kareem Moussa1, Lesley Everett2

  • 1Department of Ophthalmology & Vision Science, University of California, Davis, Sacramento, California.

Current Opinion in Ophthalmology
|August 19, 2021
PubMed
Summary
This summary is machine-generated.

Ocular lymphoproliferative disorders are rare but serious conditions. This review provides concise information on their presentation, diagnosis, and treatment to improve patient outcomes.

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Area of Science:

  • Ophthalmology
  • Hematology
  • Oncology

Background:

  • Ocular lymphoproliferative disorders (OLPDs) are rare and diverse conditions impacting vision and life quality.
  • Limited information exists on diagnosis, treatment, and prognosis due to their rarity.

Purpose of the Study:

  • To review key features of OLPDs, focusing on presentation, diagnosis, and management.
  • To consolidate current knowledge on diagnostic considerations and treatment strategies for OLPDs.

Main Methods:

  • Literature review of recent high-quality studies on OLPDs.
  • Synthesis of information on clinical outcomes, diagnostic techniques, and treatment options.

Main Results:

  • Recent studies offer insights into clinical outcomes for specific OLPD subsets.
  • Novel diagnostic techniques and current treatment strategies are discussed.

Conclusions:

  • OLPDs are a rare disease group requiring specialized knowledge.
  • This review offers a concise overview of OLPDs, including updated diagnostic and treatment information.