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Related Concept Videos

Secondary Lymphoid Organs01:15

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...
Primary Lymphoid Organs01:16

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...
Lymphoid Cells and Tissues01:18

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...
Pulmonary Tuberculosis III01:31

Pulmonary Tuberculosis III

Tuberculosis (TB) is a contagious infection primarily affecting the lung parenchyma but which can also affect other body parts. TB can be classified based on disease development, presentation, and the affected anatomical site.
The first classification is based on the development of the disease, and it includes the following categories:

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Related Experiment Video

Updated: May 17, 2026

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma
10:52

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma

Published on: March 30, 2018

Extranodal lymphoma.

M A Rashid1, A R Mondal, P K Mondal

  • 1ENT Department, Medical Collage and Hospital, India.

Indian Journal of Otolaryngology and Head and Neck Surgery : Official Publication of the Association of Otolaryngologists of India
|November 3, 2012
PubMed
Summary

Extranodal lymphomas are typically Non-Hodgkin

Area of Science:

  • Oncology
  • Pathology

Background:

  • Extranodal lymphomas, cancers originating outside lymph nodes, are predominantly Non-Hodgkin's lymphomas.
  • While extranodal involvement is common, specific sites like the maxilla and mandible are rarely affected.

Purpose of the Study:

  • To investigate the rare occurrence of primary paranasal lymphomas with gastrointestinal tract (GIT) involvement.

Main Methods:

  • Review of existing literature on extranodal lymphomas.
  • Analysis of case reports focusing on paranasal and GIT lymphoma presentations.

Main Results:

  • Maxillary and mandibular lymphomas are infrequent findings.
  • Primary paranasal lymphomas rarely present with concurrent gastrointestinal tract involvement.
Keywords:
Extranodal lymphomaMandibleMaxilla

Related Experiment Videos

Last Updated: May 17, 2026

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma
10:52

Tumor Engraftment in a Xenograft Mouse Model of Human Mantle Cell Lymphoma

Published on: March 30, 2018

Conclusions:

  • The co-occurrence of primary paranasal lymphoma and gastrointestinal tract involvement is exceptionally rare.
  • This finding underscores the diverse and sometimes unexpected presentations of Non-Hodgkin's lymphoma in extranodal sites.