대한흉부영상의학회 Korean Society of Thoracic Radiology

Discussion

Diagnosis With Brief Discussion

Diagnosis

Loefflers Syndrome (simple pulmonary eosinophilia)

Radiologic Findings

Brief Review

The characteristic features of the Loeffler's syndrome are peripheral blood eosonophilia, abscence or mild symptoms and signs (cough, fever, dyspnea), one or more nonsegmental pulmonary consolidations that are transient or migratory, and spontaneous clearing of consolidation. The radiographic findings are single or multiple areas of ill-defined homogeneous consolidation showing nonsegmental peripheral in location, transient and fleeting nature. Pleural effusion and mediastinal adenopathy and cavitation are not described. On HRCT, findings are ill-defined air-space consolidation, ground glass attenuations. The lesions are disappearing within 6 to 12 days.
Acute eosinophilic pneumonia is characterized by acute febrile illness lasting 1-5 days accompanied by myalgia, pleuritic chest pain, and hypoxemic respiratory failure, often requiring mechanical ventilation, and rapid resolution with or without steroid therapy. Radiologic findings are bilateral reticular opacities, ground-glass opacity with smooth septal thickening and pleural effusions.

References

Keywords

Lung, Eosinophilic lung disease, Loefflers Syndrome (simple pulmonary eosinophilia)