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[Eosinophilic pneumonia presenting as a mass shadow]

T Hashizume¹, A Honda, T Eto

¹Department of Respiratory Medicine, Shizuoka General Hospital, Japan.

Nihon Kyobu Shikkan Gakkai Zasshi

|December 1, 1996

Summary

A lung mass resolved spontaneously, revealing eosinophilic infiltration and high immunoglobulin E (IgE) levels, suggesting allergic bronchopulmonary aspergillosis. Early corticosteroid treatment is recommended for this lung condition.

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Area of Science:

Pulmonology
Allergy and Immunology
Pathology

Background:

Routine chest imaging identified an unexpected mass shadow in the left lung of a 35-year-old male.
The case highlights potential diagnostic challenges in identifying non-neoplastic lung lesions.

Observation:

Transbronchial lung biopsy showed significant eosinophilic infiltration in the bronchial mucosa and alveolar septum.
Elevated total serum IgE and positive skin tests/precipitating antibodies to Aspergillus were noted.

Findings:

The lung mass resolved spontaneously without intervention, leaving a residual cystic lesion.
Eosinophilic inflammation, indicated by high IgE and positive Aspergillus serology, was the likely cause of the transient lung mass.

Implications:

Related Experiment Videos

This case suggests allergic bronchopulmonary aspergillosis (ABPA) can present as a transient lung mass.
Prompt administration of corticosteroids is crucial for managing eosinophilic lung diseases and preventing tissue damage.