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Lymphatic Vessels and Lymph Transport

Lymphatic Vessels and Lymph Transport

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 spaces.

Lymphoid Cells and Tissues

Lymphoid Cells and Tissues

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...

Primary Lymphoid Organs

Primary Lymphoid Organs

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...

Secondary Lymphoid Organs

Secondary Lymphoid Organs

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...

Detailed Structure and Function of Lymph Nodes

Detailed Structure and Function of Lymph Nodes

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...

Development of the Lymphatic System

Development of the Lymphatic System

The development of lymphatic tissues and vessels in embryonic life begins around the fifth week. These structures originate from the mesoderm layer, with lymph sacs emerging from developing veins.
The first lymph sacs to form are the paired jugular lymph sacs located at the junction of the internal jugular and subclavian veins. From these sacs, lymphatic capillary plexuses extend to the thorax, upper limbs, neck, and head, eventually forming lymphatic vessels. Each jugular lymph sac maintains a...

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Related Experiment Video

Updated: Jul 21, 2026

Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma

Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma

Published on: January 9, 2019

Lymphoma: pictorial review. I.

T Halliday¹, G Baxter

¹Department of Radiology, Western Infirmary, Dumbarton Road, Glasgow, UK. tonyahalliday@totalise.co.uk

European Radiology

|April 16, 2003

Summary

Lymphoma, a lymphoid system cancer, presents diverse radiological appearances across nearly all organs. Recognizing these varied imaging findings is crucial for accurate diagnosis, as lymphoma can mimic other cancers.

Area of Science:

Oncology
Radiology
Medical Imaging

Background:

Lymphoma encompasses a range of lymphoid system cancers.
Radiological manifestations of lymphoma are highly variable.
Lymphoma can present with diverse imaging features, mimicking other malignancies.

Purpose of the Study:

To review the diverse radiological appearances of lymphoma.
To highlight the wide range of organs susceptible to lymphoma involvement.
To emphasize the diagnostic challenge posed by lymphoma's varied imaging presentation.

Main Methods:

Literature review of radiological imaging in lymphoma.
Analysis of case studies demonstrating diverse organ involvement.
Synthesis of information on the mimicry of lymphoma in imaging.

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Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

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Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

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Last Updated: Jul 21, 2026

Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma

Multiplexed Fluorescent Immunohistochemical Staining, Imaging, and Analysis in Histological Samples of Lymphoma

Published on: January 9, 2019

Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

Visualizing Lymph Node Structure and Cellular Localization using Ex-Vivo Confocal Microscopy

Published on: August 9, 2019

Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

Multiplex Immunohistochemical Analysis of the Spatial Immune Cell Landscape of the Tumor Microenvironment

Published on: August 18, 2023

Main Results:

Lymphoma involvement can be observed in virtually any organ.
Radiological appearances are not specific and vary widely.
The condition frequently mimics other neoplastic processes on imaging.

Conclusions:

The radiological spectrum of lymphoma is broad, involving numerous organs.
Radiologists must consider lymphoma in the differential diagnosis due to its mimicry.
Understanding the diverse imaging patterns is key to diagnosing lymphoma effectively.