Nevertheless, knowledge of such findings is important for making the differential diagnosis with other lung diseases, as well as for, under certain circumstances, avoiding unnecessary lung biopsies.(6) The tomographic findings described in the current literature are similar to those seen in other pulmonary diseases. Hydrostatic edema is characterized by a transudative mechanism, and heart failure is the most common cause.(1,5) There are other causes, although of lesser prevalence, that lead to pulmonary venous obstruction, which is in turn accompanied by hydrostatic edema.(1,3,5)Īlthough the radiological aspects of hydrostatic edema have been extensively studied, the tomographic findings, especially those from high-resolution computed tomography scans, have received little attention. Pulmonary edema can be classified as one of four types: hydrostatic edema permeability edema with diffuse alveolar damage permeability edema without diffuse alveolar damage and mixed edema (caused by a combination of increased hydrostatic pressure and greater pulmonary capillary permeability).(1,3) In the current study, assessments were based exclusively on tomographic findings related to hydrostatic pulmonary edema. Pulmonary edema can result from an increase in the extravascular production of fluid or from an inability to remove the interstitial fluid.(1-4) Pulmonary edema is a common pathological condition that occurs when the rate of interstitial fluid production exceeds the eliminating capacity of the lungs, thereby resulting in fluid accumulation. Conclusão: O padrão predominante encontrado nos pacientes estudados foi o de opacidades em vidro fosco associadas a espessamento dos septos interlobulares (padrão de pavimentação em mosaico), com derrame pleural bilateral, predominante à direita.Įdema pulmonar Tomografia computadorizada por raios x Pneumopatias Outros achados menos comuns foram aumento do calibre dos vasos, consolidações e nódulos do espaço aéreo. Resultados: Os principais achados do edema hidrostático foram opacidades em vidro fosco (100%), espessamento dos septos interlobulares (100%), derrame pleural (87%) e espessamento do interstício peribroncovascular (80%). Métodos: Foram analisadas, retrospectivamente, as tomografias de quinze pacientes com quadro clínico de edema pulmonar hidrostático, divididos em cinco principais grupos etiológicos: insuficiência cardíaca congestiva, valvulopatia mitral aguda, infarto agudo do miocárdio, miocardite e mediastinite fibrosante, tendo sido sete pacientes classificados no primeiro grupo e dois em cada um dos demais.

Objetivo: A proposta deste estudo foi caracterizar por meio de tomografia computadorizada de alta resolução do tórax as principais alterações pulmonares do edema pulmonar hidrostático. Pulmonary edema Tomography, X-ray computed Lung diseases Conclusion: The predominant pattern found in the patients studied was that of ground-glass opacities accompanied by interlobular septal thickening (mosaic attenuation pattern) and bilateral (predominantly right-sided) pleural effusion. Other, less common, findings were increased blood vessel diameter, consolidations and air-space nodules. Results: The principal findings in the cases of hydrostatic pulmonary edema were ground-glass opacities (in 100%), interlobular septal thickening (in 100%), pleural effusion (in 87%) and peribronchovascular interstitial thickening (in 80%). The cases were divided into five groups by etiology: congestive heart failure (n = 7) acute mitral valve disease (n = 2) acute myocardial infarction (n = 2) myocarditis (n = 2) and fibrosing mediastinitis (n = 2). Methods: A retrospective analysis was made of the tomography scans of 15 patients presenting clinical profiles of hydrostatic pulmonary edema. Objective: This study aimed to use high-resolution computed tomography scans of the chest to characterize the principal alterations occurring in cases of hydrostatic pulmonary edema.

Tomografia pulmonar com contraste