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Cytomegalovirus Pneumonia in a Patient with X-Linked Agammaglobulinemia: A Case Report
Yao-Xian Wong1,2, Shyh-Dar Shyur1,3
1Department of Pediatrics, Mackay Memorial Hospital, Taipei 104, Taiwan.
Abstract:
X-linked agammaglobulinemia (XLA) is a hereditary immune disorder that predisposes patients to frequent and severe bacterial infections caused by encapsulated bacteria (such as Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae). Otitis media, sinusitis, and pneumonia are common complications of XLA that require prompt diagnosis and treatment. Cytomegaloviruses (CMV) cause widespread and severe infections in immunocompromised individuals, affecting the respiratory tract, and consequently, leading to pneumonia, which is associated with a high mortality rate. However, CMV-induced pneumonia is rarely reported in patients with XLA. This case study details a 37-year-old male patient with XLA presenting with fever, productive cough, and dyspnea. The patient was diagnosed with CMV pneumonia and recovered after treatment. To the best of our knowledge, this is the first reported case of CMV pneumonia in a patient with XLA in Taiwan. This case study emphasizes that CMV pneumonia in patients with XLA is a treatable condition if diagnosed promptly, and that a shorter duration of treatment with the antiviral agent, in combination with immunoglobulin replacement therapy, can resolve symptoms.
Insights
X-linked agammaglobulinemia (XLA) patients can develop Cytomegalovirus (CMV) pneumonia. Prompt diagnosis and antiviral treatment, alongside immunoglobulin therapy, lead to recovery in these rare cases.
Area of Science:
- Immunology
- Infectious Diseases
- Pulmonology
Background:
- X-linked agammaglobulinemia (XLA) is a primary immunodeficiency characterized by recurrent bacterial infections.
- Cytomegalovirus (CMV) infections commonly affect immunocompromised individuals, often leading to severe respiratory complications.
- CMV pneumonia is infrequently reported in XLA patients, despite their susceptibility to infections.
Observation:
- A 37-year-old male with XLA presented with symptoms of fever, productive cough, and dyspnea.
- Diagnostic workup confirmed Cytomegalovirus pneumonia as the cause of his respiratory illness.
- The patient received antiviral therapy combined with immunoglobulin replacement.
Findings:
- The patient with XLA successfully recovered from CMV pneumonia following treatment.
- This case represents the first documented instance of CMV pneumonia in an XLA patient in Taiwan.
- Treatment duration for CMV pneumonia in XLA may be shortened with combined antiviral and immunoglobulin therapy.
Implications:
- Highlights CMV pneumonia as a treatable condition in XLA patients.
- Emphasizes the importance of prompt diagnosis and management of opportunistic infections in XLA.
- Suggests that combined immunoglobulin replacement and antiviral therapy can effectively manage CMV pneumonia in XLA.
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