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Elective bone marrow transplantation in a child with X-linked hyper-IgM syndrome presenting with acute respiratory
V Leone1, A Tommasini, M Andolina
1Department of Pediatrics IRCCS Burlo Garofolo, University of Trieste, Trieste, Italy.
Insights
A 10-month-old boy with X-linked hyper-IgM syndrome (XHIM) developed severe pneumonia. Early diagnosis and specialist collaboration enabled successful bone marrow transplantation, highlighting the importance of timely intervention for primary immunodeficiency.
Area of Science:
- Immunology
- Pediatrics
- Genetics
Background:
- X-linked hyper-IgM syndrome (XHIM) is a primary immunodeficiency.
- XHIM can present with severe opportunistic infections like Pneumocystis carinii pneumonia (PCP).
- Early diagnosis is crucial for effective management and preventing life-threatening complications.
Observation:
- A 10-month-old boy presented with acute respiratory distress syndrome (ARDS) due to PCP.
- Initial investigations for immunodeficiency were inconclusive.
- The patient had a history of recurrent infections, which were not initially recognized as indicative of underlying immune compromise.
Findings:
- The patient was diagnosed with X-linked hyper-IgM syndrome (XHIM).
- Despite initial non-indicative tests, a severe immunodeficiency was identified.
- Successful HLA-matched bone marrow transplantation was performed when the patient's condition was stable.
Implications:
- This case underscores the importance of considering primary immunodeficiencies even with initially normal immunological tests.
- Multidisciplinary specialist collaboration is vital for accurate diagnosis and management of rare genetic disorders.
- Bone marrow transplantation offers a potentially curative treatment for XHIM, improving patient outcomes.
Abstract:
We describe a 10-month-old boy diagnosed with X-linked hyper-IgM syndrome (XHIM) after suffering from life-threatening acute respiratory distress syndrome (ARDS) caused by Pneumocystis carinii pneumonia (PCP), although his previous clinical history and first level laboratory tests investigating immunological function did not indicate immunodeficiency. When the patient's overall condition was good, elective bone marrow transplantation from an HLA-matched older brother was performed successfully. We describe how correct diagnosis and successful treatment were made possible thanks to the involvement of a network of specialists.
