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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

1.5K
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

1.1K
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...
1.1K
Peripheral Nervous System: Ganglia and Nerves01:24

Peripheral Nervous System: Ganglia and Nerves

1.9K
The Peripheral Nervous System (PNS) is a crucial component of the body's neural network, extending beyond the central nervous system (CNS) to bridge the gap between the CNS and the external environment. It encompasses nerves, ganglia, and sensory receptors.
Nerves
The nerve is a bundle of axons that serves as the communication highway in the PNS. Each nerve is ensheathed in a protective layer of connective tissue called the epineurium. This outermost layer safeguards the nerve and supports the...
1.9K
Organization of the Nervous System01:13

Organization of the Nervous System

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The nervous system is one of the most complex systems in our body. It is organized into two main divisions: the central nervous system (CNS) and the peripheral nervous system (PNS).
The CNS, comprising the brain and spinal cord, houses billions of neurons. The brain is housed in the skull, while the spinal cord is linked to the brain through the foramen magnum of the occipital bone and is surrounded by the protective structure of the vertebral column. It is responsible for processing various...
5.9K
Lymphatic Vessels and Lymph Transport01:16

Lymphatic Vessels and Lymph Transport

3.4K
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: Jul 8, 2025

Flow Cytometric Analysis of Lymphocyte Infiltration in Central Nervous System during Experimental Autoimmune Encephalomyelitis
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Central Nervous System Lymphoma.

Lauren Schaff

    Continuum (Minneapolis, Minn.)
    |December 12, 2023
    PubMed
    Summary

    Primary central nervous system (CNS) lymphoma presents unique challenges. Early diagnosis and tailored treatment, including chemotherapy and emerging therapies, are crucial for managing this uncommon but serious condition.

    Area of Science:

    • Neuro-oncology
    • Hematology
    • Clinical Medicine

    Background:

    • Central nervous system (CNS) lymphoma encompasses primary (de novo) and secondary (systemic) forms.
    • Clinical presentations vary, including focal neurologic deficits, cognitive changes, and increased intracranial pressure.
    • Diagnosis necessitates a high index of suspicion for prompt, potentially curative treatment.

    Approach:

    • Review of clinical presentation, diagnostic workup, staging, and treatment strategies for CNS lymphoma.
    • Analysis of first-line methotrexate-based polychemotherapy and consolidation approaches.
    • Evaluation of novel therapeutic developments, including targeted agents and immunotherapy.

    Key Points:

    • Diffuse large B-cell lymphoma is the most common subtype, often aggressive.

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    Immunohistochemical Analysis in the Rat Central Nervous System and Peripheral Lymph Node Tissue Sections
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  • High initial response rates (80-90%) for primary CNS lymphoma are tempered by common relapse.
  • Consolidation therapies (stem cell rescue, radiation, maintenance) and novel agents show promise in reducing relapse rates.

    • Conclusions:

    • CNS lymphoma is an uncommon but significant extranodal manifestation requiring prompt diagnosis.
    • Methotrexate-based chemotherapy is standard first-line treatment, with high response rates but frequent relapse.
    • Emerging targeted therapies, immunotherapies, and consolidation strategies offer improved management and reduced relapse for CNS lymphoma.