av A Ekberg-Jansson · 2005 · Citerat av 36 — SwePub titelinformation: Bronchial mucosal mast cells in asymptomatic smokers relation to structure, lung function and emphysema.

Several different high resolution computed tomography (HRCT) patterns related to pulmonary drug toxicity have been reported in literature, and the most frequent ILDs patterns reported include Nonspecific Interstitial Pneumonia (NSIP), Usual Interstitial Pneumonia (UIP), Hypersensitivity Pneumonitis (HP), Organizing Pneumonia (OP), Acute Respiratory Distress Syndrome (ARDS), and Diffuse Alveolar …

A practical approach to cystic lung disease on HRCT Peter Beddy & Judith Babar & Anand Devaraj Received: 29 August 2010 /Revised: 18 October 2010 /Accepted: 21 October 2010 /Published online: 12 November 2010 # European Society of Radiology 2010 Abstract A lung cyst is defined as a round parenchymal lucency or area of low attenuation with a Honeycombing Honeycomb lung remodeling (honeycombing) reflects the end stage of a number of diseases that cause parenchymal destruction. It presents a characteristic HRCT pattern, with subpleural, thick- walled cysts that share walls and, when advanced, are often stacked in multiple layers (Figure 6). High-resolution computed tomographic (HRCT) scans and chest radiographs were obtained in 23 patients with progressive systemic sclerosis (PSS) to assess the diagnostic merits of HRCT compared with chest radiography in detecting interstitial lung involvement in these patients. HRCT scans showed interstitial disease in 21 patients (91%). Knowledge of the lung anatomy is essential for understanding HRCT.

As is usually the case, CT and especially HRCT is superior to plain chest radiography in identifying both the reticulonodular opacities and cysts 1,3,4. Edge and internal characteristics of pulmonary nodules evaluated with high-resolution computed tomography (HRCT) were correlated with the pathologic specimens in 93 patients. As with other pulmonary diseases with an interstitial component, HRCT is the modality of choice. Changes are usually bilateral, asymmetrical and particularly prominent in the lung bases 6. HRCT is more specific than chest radiography, physical examination, and pulmonary function tests in the diagnosis and characterization of lung abnormalities in patients with diffuse lung disease (Fig. 1.4A, B), and some HRCT findings may be highly suggestive of a specific disease. Nonetheless, most HRCT abnormalities are nonspecific and require HRCT of the Lung: Anatomic Basis, Imaging Features, Differential Diagnosis is written to demonstrate the contributions of high-resolution CT (HRCT) to the interpretation of chest radiographic abnormalities and provide keys to the characterization of disease processes.

HRCT scans showed interstitial disease in 21 patients (91%). Knowledge of the lung anatomy is essential for understanding HRCT. The interpretation of interstitial lung diseases is based on the type of involvement of the secondary lobule.

HRCT is used for diagnosis and assessment of interstitial lung disease, such as pulmonary fibrosis, and other generalized lung diseases such as emphysema and bronchiectasis. Applications [ edit ] Airways diseases, such as emphysema or bronchiolitis obliterans , cause air trapping on expiration, even though they may cause only minor changes to lung structure in their early stages.

Department of Radiology - University Hospitals Leuven Herestraat 49 - 3000 Leuven - Belgium Fax: +32 16 34 37 69 E-mail: CPMC (Comprehensive Pulmonary Medicine eCourse)- A comprehensive 50 modules and over 60 masterclasses e-Course on the important aspects of pulmonary medicine HRCT is the most sensitive and specific non-invasive method for diagnosing bronchiectasis. In addition to making the diagnosis, the pattern of disease on HRCT may enable one to limit the differential to a single/few specific causative entities.

Edge and internal characteristics of pulmonary nodules evaluated with high-resolution computed tomography (HRCT) were correlated with the pathologic specimens in 93 patients.

Basic HRCT patterns of lung disease Numerous studies and clinical experience have convincingly shown the superiority of high-resolution computed tomography (HRCT) over chest radiography in terms of improved detection of diffuse lung disease, the provision of a histospecific diagnosis, and the assessment of disease reversibility. Radiology Department of the Rijnland Hospital, Leiderdorp and the Academical Medical Centre, Amsterdam, the Netherlands. In this review we present the key findings in the most common interstitial lung diseases. There are numerous interstitial lung diseases, but in clinical practice only about ten diseases The HRCT appearance of pulmonary sarcoidosis varies greatly and is known to mimic many other diffuse infiltrative lung diseases. Approximately 60 to 70% of patients with sarcoidosis have characteristic radiologic findings.

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HRCT slices can … HRCT is used for diagnosis and assessment of interstitial lung disease, such as pulmonary fibrosis, and other generalized lung diseases such as emphysema and bronchiectasis. Applications [ edit ] Airways diseases, such as emphysema or bronchiolitis obliterans , cause air trapping on expiration, even though they may cause only minor changes to lung structure in their early stages. In this section of Radiology Rounds, we will discuss HRCT technique, identification of radiologic features such as honeycombing and reticulation, which are typical for interstitial lung disease, and CT features of comorbid conditions such as pulmonary arterial hypertension. Several different high resolution computed tomography (HRCT) patterns related to pulmonary drug toxicity have been reported in literature, and the most frequent ILDs patterns reported include Nonspecific Interstitial Pneumonia (NSIP), Usual Interstitial Pneumonia (UIP), Hypersensitivity Pneumonitis (HP), Organizing Pneumonia (OP), Acute Respiratory Distress Syndrome (ARDS), and Diffuse Alveolar … Infection is a common cause of lung disease in both immunocompromised patients and those with a normal immune status. This chapter focuses on a general approach to suspected infection, the role of HRCT, and typical HRCT findings and provides a discussion of different patterns of infection based upon the type of organism.

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As with other pulmonary diseases with an interstitial component, HRCT is the modality of choice. Changes are usually bilateral, asymmetrical and particularly prominent in the lung bases 6.

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Knowledge of the lung anatomy is essential for understanding HRCT. The interpretation of interstitial lung diseases is based on the type of involvement of the secondary lobule. The secondary lobule is the basic anatomic unit of pulmonary structure and function. It is the smallest lung unit that is surrounded by connective tissue septa.

HRCT is the use of thin-section CT images (≤1.5-mm slice thickness) with a high spatial frequency reconstruction air trapping: refers to regions of the lung which following expiration do not show the normal increase in attenuation, or show little change in cross-sectional area 5 (i.e. this is an expiratory HRCT finding); the presence of air trapping suggests airway disease. High-resolution computed tomography (HRCT) of the lung provides detailed visualization of the lung parenchyma and is being used to evaluate chronic interstitial lung disease. The technique of HRCT involves use of 1-2-mm-thick collimation scans with a high spatial frequency algorithm. HRCT can be more sensitive and specific in the diagnosis of diffuse lung disease than other diagnostic tests (Fig.

Knowledge of the lung anatomy is essential for understanding HRCT. The interpretation of interstitial lung diseases is based on the type of involvement of the secondary lobule. The secondary lobule is the basic anatomic unit of pulmonary structure and function. It is the smallest lung unit that is surrounded by connective tissue septa.