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A neonate with Löffler syndrome
J Fujimura1, Y Murakami, A Tsuda
1Department of Pediatrics, Nippon Medical School, Tokyo, Japan.
Summary
This case highlights Löffler syndrome in a neonate presenting with transient pulmonary infiltrates and peripheral blood eosinophilia. Diagnosis in newborns is rare and often incidental, as seen in this infant.
Area of Science:
- Neonatal Medicine
- Pediatric Pulmonology
- Hematology
Background:
- Löffler syndrome, characterized by pulmonary infiltrates and eosinophilia, is exceptionally rare in neonates.
- Diagnosis is often incidental, as symptoms like cough or dyspnea may be absent.
Observation:
- A male neonate presented with vomiting and abnormal pulmonary infiltrates on chest X-ray at 8 days old.
- Peripheral blood eosinophilia was detected during routine laboratory studies.
- No respiratory symptoms such as cough or dyspnea were reported.
Findings:
- Radiographic pulmonary changes were transient, resolving by day 25.
- Eosinophilia also resolved spontaneously, returning to normal levels by 2 months of age.
- The clinical course suggests a fortuitous diagnosis of Löffler syndrome.
Implications:
- This case underscores the importance of considering Löffler syndrome in neonates with unexplained pulmonary infiltrates and eosinophilia, even without typical symptoms.
- Early recognition and monitoring are crucial for managing this rare condition in newborns.
- Further research may elucidate the specific triggers and long-term outcomes of neonatal Löffler syndrome.