Hypersensitivity pneumonitis (HP), also known as extrinsic allergic alveolitis, represents a group of pulmonary disorders mediated by an inflammatory reaction to. 6 Jul Kaltreider defines hypersensitivity pneumonitis (HP), or extrinsic allergic alveolitis , as “a group of related inflammatory interstitial lung diseases. Inicio Medicina Clínica Alveolitis alérgica extrínseca por esparto (espartosis) · Articles in press · Current Issue · Archive · Supplements · Most Often Read.

Author: Shaktikree Moogujinn
Country: Comoros
Language: English (Spanish)
Genre: Business
Published (Last): 26 February 2006
Pages: 423
PDF File Size: 4.99 Mb
ePub File Size: 6.50 Mb
ISBN: 511-8-30298-286-8
Downloads: 19733
Price: Free* [*Free Regsitration Required]
Uploader: Kara

Physical examination revealed crackles and respiratory distress. Ann Allergy, 33pp. The histopathologic process consists of chronic inflammation of the bronchi and exgrinseca tissue, often with poorly defined granulomas and giant cells in the interstitium or alveoli.

Synonyms or Alternate Spellings: Edit article Share article View revision alveolitis alergica extrinseca. HP can be classified on the basis of symptoms as acute, subacute, or chronic or on the basis of the dynamic nature of the disease as acute progressive, acute intermittent non-progressive, or recurrent non-acute disease. Extrinseda Allergy, 8pp.

In which subject field?

Case 2 A year-old girl who lived in a rural area and had birds at home presented with a family history of HP. You can aoergica the settings or obtain more information by clicking here. Respiration, 43pp. Salas HernandezN.


Chief among the minor criteria are crackles at the lung bases and arterial hypoxemia. Check for errors and try again. Se continuar a navegar, consideramos que aceita o seu uso. Sin embargo, en alveolitis alergica extrinseca serie destacan: Please review our privacy policy. Most alveolitis alergica extrinseca of hypersensitivity pneumonitis, whether acute or insidious, include the following four histologic features in variable amounts and combinations 3.

However, in our serie stand out: Immunopathogenesis of hypersensitivity pneumonitis. Due to a variable radiographic alveolitis alergica extrinseca, it may not alveolitis alergica extrinseca meaningful to give a differential diagnosis for hypersensitivity pneumonitis per se. Access a collection of Canadian resources on all aspects of English and French, including alveolitis alergica extrinseca. The diagnosis of HP requires a high degree of suspicion. Kaltreider defines hypersensitivity pneumonitis HPor extrinsic allergic alveolitis, as “a group of related inflammatory interstitial lung diseases that result from hypersensitivity immune reactions to the repeated inhalation or ingestion of various antigens derived from fungal, bacterial, animal protein, or reactive chemical sources.


Analysis of cell-mediated hypersensitivity, immune alveolitis alergica extrinseca and monocyte-released factors in allergic alveolitis and asymptomatic exposed subjects. The degree of pulmonary fibrosis at diagnosis is the major prognostic factor.

Subscribe to our Newsletter. Analysis of cell-mediated hypersensitivity, immune complexes and monocyte-released factors in allergic alveolitis and asymptomatic exposed subjects.


Systemic corticosteroids are the treatment of choice in subacute and chronic forms. J Immunol,pp. Are you a health professional able to prescribe or dispense drugs? J Allergy Clin Immunol, 48pp. Depending on the type of precipitant, numerous other more precipitant-specific terms have been used such as: She returned to the outpatient clinic one week later, reporting dyspnea on minimal exertion.

A paciente recebeu alta, sendo medicada com claritromicina e prednisolona. All three patients presented with cough and dyspnea on exertion. Extrinsic allergic alveolitis in cheese scrubbers.

The treatment consists in avoiding contact with the antigen, and, in some cases, systemic corticosteroids might be necessary in order to prevent its progression to pulmonary fibrosis. Continuing navigation will be considered as acceptance of this use. Related Radiopaedia articles Interstitial lung disease interstitial lung disease drug-induced interstitial lung disease amiodarone alvfolitis bleomycin lung toxicity leflunomide-induced acute interstitial pneumonia methotrexate lung disease hypersensitivity pneumonitis acute hypersensitivity pneumonitis subacute hypersensitivity pneumonitis chronic hypersensitivity pneumonitis aetiology bird fancier’s lung: Discussion The patients described had a family history of HP accompanied by a clinical alveolihis that corresponded to the subacute form of HP, with an obstructive pattern and symptoms such as cough, dyspnea on exertion, weight loss, and sometimes fever, the onset of which occurred within weeks to months of exposure to an antigen.


The patient was discharged extrunseca clarithromycin and prednisolone. The need for lung biopsy should be weighed in terms of its cost-benefit ratio, and it should be considered in rare cases in which there is diagnostic uncertainty or in which the clinical course or treatment response is unclear.

Lancet, 2pp. Los Angeles,pp. Continuing navigation will be considered as acceptance of this use. Hypersensitivity pneumonitis HPalso known as extrinsic allergic alveolitisrepresents a group of pulmonary disorders mediated by an inflammatory reaction to inhalation of an allergen.

HRCT scan of the chest showing pronounced ground-glass changes in both lung fields, consistent with extrinsic allergic alveolitis. Open in a separate window. The eextrinseca you choose must correspond to the language of the term you have entered. Instituto Nacional de Enfermedades Respiratorias.

Author information Article notes Copyright and License information Disclaimer. Several features on HRCT chest may appear at any stage of the disease alveolitis extriinseca extrinseca include Clin Immunol Immunopathol, 29pp. Am J Med, 57pp. SRJ is a prestige metric based on the idea that not all citations are the same. We report the clinical cases of three children with a history of contact with birds and a family history of HP.