A Rare Case of Empyema in a 4-Year-Old Child: A Diagnostic and Management Challenge

Abstract

Introduction
Empyema thoracis, though a recognized complication of pneumonia, is relatively rare in very young children, especially in its loculated form. Delayed diagnosis or inadequate initial management may result in prolonged morbidity, poor nutrition, and complications. This case highlights the clinical complexity, diagnostic journey, and multidisciplinary management of a pediatric empyema in a 4-year-old female, underscoring the need for early referral, imaging, and prompt intervention. It contributes to pediatric literature by reinforcing the value of high clinical suspicion and the role of CT in evaluating non-resolving pneumonia.
Patient Concerns and Clinical Findings
A 4-year-old girl initially presented with:
⦁    Fever for 2 weeks
⦁    Cough, vomiting, and reduced appetite
⦁    Temporary relief with oral antibiotics at a local hospital, but fever recurred
⦁    Subsequently managed with IV antibiotics at another facility before referral for further evaluation
Examination Findings:
⦁    Moderately built and nourished
⦁    No cyanosis, icterus, clubbing, lymphadenopathy, or edema
⦁    Tachypnea and reduced breath sounds on the left side
⦁    No facial dysmorphism or structural abnormalities noted
⦁    No neurological or systemic deficits

Investigations:
⦁    Complete Blood Count:
⦁    Anemia (Low Hb, PCV, MCV, MCHC)
⦁    CT Chest:
⦁    Loculated empyema on the left side
⦁    Pleural Fluid Cytology:
⦁    Predominantly lymphocytes, neutrophils, mesothelial cells
⦁    No malignant cells
⦁    Routine Biochemical Workup:
⦁    Elevated inflammatory markers

Final Diagnosis:
⦁    Left-sided loculated empyema thoracis in a 4-year-old child
⦁    Secondary to unresolved pneumonia

Management:
⦁    Continued IV antibiotics
⦁    Supportive management including IV fluids, antipyretics, and nutritional supplementation
⦁    Monitoring via imaging and lab parameters
⦁    Surgical consultation for possible intercostal drainage or decortication if conservative treatment fails

Outcome:
⦁    Gradual clinical improvement
⦁    Reduction in fever and respiratory distress
⦁    Ongoing follow-up for nutritional recovery and lung function monitoring

Conclusion & Key Takeaways:
⦁    Empyema in children, though uncommon, should be suspected in cases of persistent fever and respiratory symptoms not responding to antibiotics
⦁    CT chest is crucial for diagnosing loculated pleural collections
⦁    Early intervention, proper antibiotic therapy, and nutritional support are key to improving outcomes
⦁    Reinforces the need for thorough evaluation in children with unresolved pneumonia to prevent complications such as chronic empyema or lung damage