Volume : IV, Issue : II, February - 2015

Abstract :

Eosinophilic lung diseases are a diverse group of pulmonary disorders associated with peripheral or tissue eosinophilia. They are classified as eosinophilic lung diseases of unknown cause (simple pulmonary eosinophilia [SPE], acute eosinophilic pneumonia [AEP], chronic eosinophilic pneumonia [CEP], idiopathic hypereosinophilic syndrome [IHS]), eosinophilic lung diseases of known cause (allergic onchopulmonary aspergillosis [ABPA], onchocentric granulomatosis [BG], parasitic infections, drug reactions), and eosinophilic vasculitis (allergic angiitis, granulomatosis [Churg–Strauss syndrome]). The percentages of eosinophils in peripheral blood and onchoalveolar lavage fluid are essential parts of the evaluation. Chest computed tomography (CT) demonstrates a more characteristic pattern and distribution of parenchymal opacities than conventional chest radiography. At CT, SPE and IHS are characterized by single or multiple nodules with a surrounding ground–glass–opacity halo, AEP mimics radiologically hydrostatic pulmonary edema, and CEP is characterized by nonsegmental airspace consolidations with peripheral predominance. ABPA manifests with bilateral central onchiectasis with or without mucoid impaction. The CT manifestations of BG are nonspecific and consist of a focal mass or lobar consolidation with atelectasis. The most common CT findings in Churg–Strauss syndrome include subpleural consolidation with lobular distribution, centrilobular nodules, onchial wall thickening, and interlobular septal thickening. Therefore it is very important to integrate clinical, radiologic and pathologic findings which facilitate the initial differential diagnosis of various eosinophilic lung diseases.

Article: Download PDF    DOI : https://www.doi.org/10.36106/paripex  

Cite This Article:

, PARIPEX-INDIAN JOURNAL OF RESEARCH : Volume-2 | Issue-3 | March-2013

Number of Downloads : 166

References :