What does lobar pneumonia look like?
Classically, lobar pneumonia appears as a focal dense opacification of the majority of an entire lobe with relative sparing of the large airways. There may be additional associated areas of ground-glass opacity in a lobar or segmental pattern, likely representing areas of partial involvement or simply atelectasis 1.
How can you tell the difference between bronchopneumonia and lobar pneumonia?
Lobar pneumonia affects one or more sections (lobes) of the lungs. Bronchial pneumonia (also known as bronchopneumonia) affects patches throughout both lungs.
What does lobar pneumonia describe?
Medical Definition of lobar pneumonia : acute pneumonia involving one or more lobes of the lung characterized by sudden onset, chill, fever, difficulty in breathing, cough, and blood-stained sputum, marked by consolidation, and normally followed by resolution and return to normal of the lung tissue.
How is lobar pneumonia diagnosed?
The most specific diagnostic test for lobar pneumonia is sputum culture. It is very important to identify the cause for the proper treatment. It is preferable to test for influenza during the winter months as the combination of influenza and pneumonia is fatal.
What is alveolar exudate?
The surrounding alveolar walls have capillaries that are dilated and filled with RBC’s. Such an exudative process is typical for bacterial infection. This exudate gives rise to the productive cough of purulent yellow sputum seen with bacterial pneumonias.
What is red and GREY Hepatization?
Red hepatization is when there are red blood cells, neutrophils, and fibrin in the pulmonary alveolus/ alveoli; it precedes gray hepatization, where the red cells have been broken down leaving a fibrinosuppurative exudate. The main cause is lobar pneumonia.
What are 4 stages of pneumonia?
Stage 1: Congestion. Stage 2: Red hepatization. Stage 3: Grey hepatization. Stage 4: Resolution.
What is the radiographic appearance of lobar pneumonia?
The radiographic patterns seen in Klebsiella pneumonia include patchy bronchopneumonia and dense lobar consolidations . The alveoli are filled with large amounts of fluid and mucoid suppurative exudates that may cause the volume of the affected lung to increase with bulging of the interlobar fissures.
What does chest X-ray findings indicate aspiration pneumonia?
For aspiration pneumonia, chest x-ray shows an infiltrate, frequently but not exclusively, in the dependent lung segments, ie, the superior or posterior basal segments of a lower lobe or the posterior segment of an upper lobe. For aspiration-related lung abscess, chest x-ray may show a cavitary lesion.
How do bronchopneumonia and lobar pneumonia differ?
Accordingly, the key difference between the two forms is that in lobar pneumonia, the inflammation is confined to one lobe but in bronchopneumonia inflammatory foci are present throughout the lungs without any localization.
What is left lower lobe pneumonia?
Left lower lobe pneumonia refers to focal diseases, which is due to the presence of a virus, fungus or bacteria affecting the lower respiratory tract.