Acremonium kiliense infection in a child with chronic granulomatous disease

Area of Science:

• Immunology
• Mycology
• Pediatrics

Background:

• Primary immunodeficiency (PID) encompasses a group of genetic disorders affecting the immune system's ability to fight infections.
• Unusual or opportunistic infections can be the initial clinical presentation of underlying PIDs.
• Chronic granulomatous disease (CGD) is a specific PID characterized by impaired neutrophil function, leading to recurrent infections.

Observation:

• A case report details a four-month-old infant presenting with pneumonia caused by the fungus Acremonium kiliense.
• This fungal pneumonia was the first recognized clinical manifestation in the infant.
• The infant was subsequently diagnosed with chronic granulomatous disease.

Findings:

• Acremonium kiliense, an uncommon fungal pathogen, was identified as the causative agent of pneumonia.
• The presentation of this rare fungal infection served as the initial indicator of chronic granulomatous disease in the infant.
• This case highlights the diagnostic challenge posed by unusual microorganisms in immunocompromised individuals.

Implications:

• Emphasizes the necessity of actively searching for atypical microorganisms in patients with suspected or known primary immunodeficiencies.
• Underscores the importance of accurate and timely diagnosis of unusual infections.
• Highlights that prompt, specific antimicrobial therapy for these infections can significantly decrease morbidity and mortality in immunocompromised patients.