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18 de ago. de 2022 · Broadly defined as acute inflammation of the lung parenchyma. Clinically characterized by fever, purulent sputum, leukocytosis and decline in oxygenation. Caused by bacteria and other microorganisms (virus and fungus) Essential features. Classically divided by gross morphology into lobar and bronchopneumonia.
31 de jul. de 2023 · Histopathology. The histopathology in pneumonia can be broadly studied under 2 main headings: bronchopneumonia/lobular pneumonia or lobar pneumonia. Lobar Pneumonia. Lobar pneumonia is diffuse consolidation involving the entire lobe of the lung. Its evolvement can be broken down into 4 stages as follows:
6 de feb. de 2014 · Bronchopneumonia (Lobular pneumonia) is an acute exudative suppurative inflammation of the lungs characterized by foci of consolidation surrounded by normal parenchyma. Generally, it is produced by bacteria : staphylococcus, streptococcus, Haemophilus influenzae, proteus, Escherichia coli.
Bronchopneumonia. Bronchopneumonia occurs when the infection begins within the bronchi/bronchioles, and then descends into the nearby alveoli. Because of this, consolidation of the alveoli occurs in patches around the affected bronchi/bronchioles.
Pathologic Features. Bronchopneumonia (i.e., lobular pneumonia) results when organisms are deposited in the epithelium of peripheral airways (i.e., distal bronchi or bronchioles), resulting in epithelial ulcerations and formation of a peribronchiolar exudate.
Definition / general. Organizing pneumonia (OP) can be defined as either clinicopathological diagnosis, histological pattern or microscopic findings. Histologic features include polypoid fibroblastic aggregations, which plug alveolar sacs, ducts and bronchioles. Essential features.
OBJECTIVES--To assess histopathologists' ability to accurately diagnose bronchopneumonia, both on naked eye and microscopic examination; to extrapolate from the error rate to determine whether the role of the necropsy in monitoring the epidemiology of clinical error might be compromised.
