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Chronic eosinophilic pneumonia
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Chronic eosinophilic pneumonia

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Contributors: Paritosh Prasad MD, Christine Osborne MD, Mary Anne Morgan MD
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Synopsis

Chronic eosinophilic pneumonia is a rare, idiopathic disease characterized by an abnormal and marked accumulation of eosinophils in the interstitium and alveolar spaces in the lung, typically affecting patients in their 30s and 40s. Approximately 60% of patients have a history of atopy, and 50% have preceding asthma or will go on to develop asthma.

Patients typically present with several months of gradual onset of symptoms including fever, dyspnea, productive cough, weight loss, and night sweats. Physical examination may reveal wheezing or crackles in approximately 1/3 of patients. Prognosis is generally quite good despite relapses and the need for long-term therapy.

Codes

ICD10CM:
J82 – Pulmonary eosinophilia, not elsewhere classified

SNOMEDCT:
233692000 – Cryptogenic pulmonary eosinophilia

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Acute eosinophilic pneumonia – Typically much more fulminant / acute course, more severe hypoxemia, absence of peripheral blood eosinophilia.
  • Allergic bronchopulmonary aspergillosis (ABPA) – Different radiographic abnormalities: ABPA has central bronchiectasis, fleeting infiltrates, mucous plugging; also elevated IgE and sensitivity to aspergillus.
  • Eosinophilic pneumonia due to drugs – Nonsteroidal anti-inflammatory drugs (NSAIDs) and antibiotics such as nitrofurantoin, minocycline, sulfa meds, ampicillin, and daptomycin are among the most common, but many other medications / drugs have been reported.
  • Eosinophilic pneumonia due to toxins (silicate, sulfite, scorpion stings, heroin / crack cocaine / marijuana, dust or smoke inhalation).
  • Eosinophilic granulomatosis with polyangiitis (Churg Strauss syndrome) – More likely to have extrapulmonary manifestations; radiographic abnormalities are generally mid-upper lung zone and centrilobular rather than peripheral.
  • Fungal pneumonia (eg, cryptococcosis, aspergillosis, mucormycosis, coccidioidomycosis, histoplasmosis) – Also has eosinophilia on bronchoalveolar lavage (BAL); obtain travel history or history of immunosuppression.
  • Parasitic infection (Ascaris, Strongyloides, Paragonimus, Toxocara) – Also has eosinophilia on BAL; obtain travel history or history of immunosuppression.
  • Cryptogenic organizing pneumonia – BAL eosinophilia absent.
  • Pneumonia / infection – BAL eosinophilia absent.
  • Asthma – Usually would not have characteristic chest x-ray (CXR) findings or fever; BAL eosinophilia absent or low grade.
  • Congestive heart failure – BAL eosinophilia absent; patient would likely not have fever and would have other signs / symptoms of heart failure.
  • Diffuse alveolar hemorrhage – BAL eosinophilia absent; instead see blood return on BAL.

Best Tests

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Management Pearls

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Therapy

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Drug Reaction Data

Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.

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References

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Last Reviewed: 05/26/2017
Last Updated: 06/08/2017
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Chronic eosinophilic pneumonia
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Chronic eosinophilic pneumonia : Cough, Night sweats, Weight loss, Dyspnea, Wheezing, Peripheral eosinophilia
Copyright © 2019 VisualDx®. All rights reserved.