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A pulmonary infiltrate is a substance denser than air, such as pus, blood, or protein, which lingers within the parenchyma of the lungs. [1] Pulmonary infiltrates are associated with pneumonia, tuberculosis, [citation needed] and sarcoidosis. [2] Pulmonary infiltrates can be observed on a chest radiograph. [citation needed]
Lobar pneumonia is a form of pneumonia characterized by inflammatory exudate within the intra-alveolar space resulting in consolidation that affects a large and continuous area of the lobe of a lung. [1] [2] It is one of three anatomic classifications of pneumonia (the other being bronchopneumonia and atypical pneumonia).
The location is often gravity dependent, and depends on the person's position. Generally, the right middle and lower lung lobes are the most common sites affected, due to the larger caliber and more vertical orientation of the right mainstem bronchus. People who aspirate while standing can have bilateral lower lung lobe infiltrates. The right ...
A parapneumonic effusion (circled), due to a left lower lobe pneumonia. A parapneumonic effusion is a type of pleural effusion (accumulation of fluid in the pleural cavity ) that arises as a result of a pneumonia , lung abscess , or bronchiectasis . [ 1 ]
There are usually a few multinucleated large cells. The alveolar architecture is typically intact, however there is a modest chronic inflammatory infiltration inside the interstitium. A moderate quantity of eosinophils might also be present. Lymphoid aggregates can be present. [18]
A pulmonary consolidation is a region of normally compressible lung tissue that has filled with liquid instead of air. [1] The condition is marked by induration [2] (swelling or hardening of normally soft tissue) of a normally aerated lung.
Infiltrate or consolidation - Opacification of airspaces within the lung parenchyma. Consolidation or infiltrate can be dense or patchy and might have irregular, ill-defined, or hazy borders. Dense homogenous opacity in right, middle and lower lobe of primary pulmonary TB.
Nodular density is used to distinguish larger lung tumors, smaller infiltrates or masses with other accompanying characteristics. An often used formal radiological definition is the following: a single lesion in the lung completely surrounded by functional lung tissue with a diameter less than 3 cm and without associated pneumonia , atelectasis ...