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X-linked Hyper-IgM Syndrome with Bronchiectasis.

Devki Nandan1, Vimal Kumar Nag1, Nitin Trivedi1

  • 1Department of Pediatrics, Post Graduate Institute of Medical Education and Research, Dr. Ram Manohar Lohia Hospital, New Delhi, India.

Journal of Laboratory Physicians
|October 21, 2014
PubMed
Summary
This summary is machine-generated.

X-linked hyper-immunoglobulin M syndrome (HIGM-1) is a rare genetic disorder. This case highlights a 5-year-old boy with HIGM-1, presenting with bronchiectasis and potential Pneumocystis jiroveci pneumonia, emphasizing diagnostic markers.

Keywords:
BronchiectasisPneumocystis jiroveciX-linked hyper-IgM syndromechildren

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Area of Science:

  • Immunology
  • Genetics
  • Pediatrics

Background:

  • X-linked hyper-immunoglobulin M syndrome (HIGM-1) is a rare primary immunodeficiency.
  • Characterized by elevated IgM and deficient IgG, IgA, and IgE.
  • Patients experience recurrent sinopulmonary infections and diarrhea, with high risk for Pneumocystis jiroveci pneumonia.

Observation:

  • A 5-year-old boy presented with bronchiectasis.
  • Clinical presentation suggested possible Pneumocystis jiroveci pneumonia.
  • Family history revealed two deceased male siblings with recurrent pneumonia and diarrhea.

Findings:

  • Diagnosis of HIGM-1 confirmed through clinical evaluation, immune profiling, and whole blood flow cytometry.
  • The patient's immune profile showed elevated IgM with low IgG, IgA, and IgE.
  • Diagnostic approach integrated clinical symptoms, laboratory results, and family history.

Implications:

  • Early diagnosis and management of HIGM-1 are crucial for preventing severe infections.
  • Highlights the importance of comprehensive diagnostic workup in suspected primary immunodeficiencies.
  • Understanding HIGM-1's clinical spectrum aids in recognizing at-risk individuals and improving patient outcomes.