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Related Concept Videos

Immunodeficiency Diseases01:25

Immunodeficiency Diseases

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Immunodeficiency disorders are conditions in which the immune system's ability to fight infectious disease and cancer is compromised or entirely absent. The immune system comprises a complex network of cells, tissues, and organs that work together to protect the body from potentially harmful invaders. When this system is deficient or not functioning properly, it leaves the body susceptible to infections, diseases, or other complications.
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The T and B lymphocytes of the adaptive immune system develop from common lymphoid progenitor cells in the bone marrow. These progenitors give rise to precursors that eventually develop into both T and B lymphocytes. As these precursors mature, they gain the ability to detect and respond to foreign antigens in the body, a process known as immunocompetence. Additionally, these precursors acquire self-tolerance, a process that ensures they do not react to self-antigens. This intricate system...
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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.
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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.
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Updated: Sep 18, 2025

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Inborn errors of immunity presenting with lymphoproliferation: lessons from a case series.

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Summary

Lymphoproliferation can signal inborn errors of immunity (IEI). Early diagnosis and molecular identification are crucial for managing conditions like ALPS, CVID, and APDS, improving patient outcomes.

Keywords:
Activated phosphoinositide 3-kinase δ syndromeAutoimmune lymphoproliferative syndromeCommon variable immunodeficiencyHodgkin lymphomaLymphadenopathyPediatricsSplenomegaly

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Area of Science:

  • Immunology
  • Genetics
  • Clinical Medicine

Background:

  • Lymphoproliferation is a key sign in various inborn errors of immunity (IEI).
  • The genetic basis and clinical impact of IEI-associated lymphoproliferation are not fully understood.
  • Diagnosing and managing these patients presents significant challenges.

Purpose of the Study:

  • To review the role of lymphoproliferative features in key IEIs (ALPS, CVID, APDS).
  • To discuss updated diagnostic, treatment, and follow-up strategies for IEI with lymphoproliferation.
  • To highlight the clinical relevance of molecular diagnosis for improved patient outcomes.

Main Methods:

  • Review of case studies focusing on ALPS, CVID, and APDS.
  • Analysis of diagnostic and clinical management approaches for IEI presenting with lymphoproliferation.
  • Discussion of immunological assessment and genetic analysis in patient evaluation.

Main Results:

  • Lymphoproliferative features are significant indicators across several IEIs.
  • Early immunological assessment and molecular diagnosis are vital for effective management.
  • Polyclonal lymphoproliferation in IEI increases susceptibility to malignant forms, necessitating careful monitoring.

Conclusions:

  • Identifying the molecular basis of IEI is critical for targeted therapies and improved long-term outcomes.
  • A structured approach involving initial immunological screening and specialized testing aids in diagnosis.
  • Vigilant follow-up is essential to detect the potential development of malignancy in patients with IEI and lymphoproliferation.