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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).
On a chest X-ray, the sail sign is a radiologic sign that suggests left lower lobe collapse. [1] In children, however, a sail sign could be normal, reflecting the shadow of the thymus. [2] The thymic sail sign or spinnaker-sail sign is due to elevation of the thymic lobes in the setting of pneumomediastinum. [3]
X-ray presentations of pneumonia may be classified as lobar pneumonia, bronchopneumonia, lobular pneumonia, and interstitial pneumonia. [75] Bacterial, community-acquired pneumonia classically show lung consolidation of one lung segmental lobe, which is known as lobar pneumonia. [42]
Signs that consolidation may have occurred include: Expansion of the thorax on inspiration is reduced on the affected side; Vocal fremitus is increased on the affected side; Percussion note is impaired in the affected area; Breath sounds are bronchial; Possible medium, late, or pan-inspiratory crackles; Vocal resonance is increased.
Both doctors say that the people most at risk for pneumonia include those over the age of 65, those with weakened immune systems, and those with other medical conditions, including lung disease ...
A radiation source is positioned behind the patient at a standard distance (most often 6 feet, 1,8m), and the x-ray beam is fired toward the patient. In anteroposterior (AP) views, the positions of the x-ray source and detector are reversed: the x-ray beam enters through the anterior aspect and exits through the posterior aspect of the chest.
Early investigators distinguished between typical lobar pneumonia and atypical (e.g. Chlamydophila) or viral pneumonia using the location, distribution, and appearance of the opacities they saw on chest x-rays. Certain x-ray findings can be used to help predict the course of illness, although it is not possible to clearly determine the ...
Osteomalacia is a disease characterized by the softening of the bones caused by impaired bone metabolism primarily due to inadequate levels of available phosphate, calcium, and vitamin D, or because of resorption of calcium. The impairment of bone metabolism causes inadequate bone mineralization.