The information on this website is not intended for diagnosis or treatment. Please consult your physician for health concerns.

+90 850 321 50 00

Acute Eosinophilic Pneumonia

A rapidly progressive eosinophilic lung disease that mimics severe community-acquired pneumonia.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göğüs Hastalıkları department. Book Appointment →

What is Acute Eosinophilic Pneumonia?

Acute eosinophilic pneumonia (AEP) is a rare but distinctive form of eosinophilic lung disease characterized by acute febrile illness with rapidly progressive dyspnea, severe hypoxemia, and bilateral pulmonary infiltrates evolving over days.

Bronchoalveolar lavage shows striking eosinophilia (typically more than 25%), while peripheral blood eosinophilia may be absent at presentation; common triggers include new-onset cigarette smoking, vaping, dust, and certain medications.

Differentiation from infection and ARDS is critical; treatment with corticosteroids leads to rapid clinical and radiologic improvement, and removal of the trigger usually prevents recurrence.

Symptoms

Acute fever and malaise
Rapidly progressive dyspnea
Cough and chest pain
Hypoxemia requiring oxygen support
Bilateral pulmonary infiltrates on imaging
Pleural effusion
Respiratory failure requiring intensive care

Risk Factors

Recent initiation of cigarette smoking
Vaping and electronic cigarette use
Inhalational exposures (dust, fumes)
New medications (NSAIDs, antibiotics)
Recreational drug exposure
Occupational dust exposure
Military deployment in dusty environments

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Acute fever with rapidly worsening dyspnea
  • Failure to respond to standard antibiotics
  • Severe hypoxemia in young patient
  • Recent change in smoking or vaping habits
  • Bilateral infiltrates without clear infectious cause
  • Need for ICU-level support
  • Suspected eosinophilic lung disease

Treatment Methods

01
Chest imaging and arterial blood gas
02
Bronchoscopy with bronchoalveolar lavage and eosinophil count
03
Exclusion of infection and other ILD causes
04
Systemic corticosteroids with rapid response
05
Cessation of suspected trigger (smoking, drug)
06
Supportive oxygen and intensive care if needed
07
Pulmonologist follow-up to prevent recurrence

Which Department to Visit?

You can visit our Göğüs Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

Learn About Göğüs Hastalıkları Department

Let us help you

You can make an appointment with our specialists or contact us for your concerns.

Book AppointmentContact Us

Related Health Topics

Other articles from the same department you may want to explore.

Asthma

Göğüs Hastalıkları

Asthma is characterized by wheezing, coughing and shortness of breath attacks; with proper treatment it can be kept under control.

COPD (Chronic Obstructive Pulmonary Disease)

Göğüs Hastalıkları

COPD is an irreversible lung disease characterized by shortness of breath and chronic cough; quitting smoking slows its progression.

Pneumonia

Göğüs Hastalıkları

Pneumonia presents with high fever, cough and shortness of breath; the vast majority recover with appropriate antibiotic treatment.

Tuberculosis (TB)

Göğüs Hastalıkları

Tuberculosis presents with weeks-to-months of cough, fever, and night sweats; early diagnosis and treatment lead to full recovery.

Pleural Effusion

Göğüs Hastalıkları

Pleural effusion is the accumulation of excess fluid in the pleural space, resulting from imbalances in fluid production and removal, and represents a manifestation of diverse cardiopulmonary, infectious, and malignant disorders.

Pneumothorax

Göğüs Hastalıkları

Pneumothorax is the presence of air in the pleural space resulting in partial or complete lung collapse, classified as spontaneous (primary/secondary), traumatic, or iatrogenic, with tension pneumothorax representing a life-threatening emergency.

Bronchitis (Acute and Chronic)

Göğüs Hastalıkları

Acute bronchitis is mostly viral and resolves spontaneously, while chronic bronchitis is a smoking-related component of COPD.

Bronchiectasis

Göğüs Hastalıkları

Bronchiectasis is a chronic respiratory disease characterized by permanent, abnormal dilation of bronchi with associated destruction of muscular and elastic components of airway walls, resulting in impaired mucociliary clearance and recurrent infection.

Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.