Differenzialdiagnosen in der Bildgebung bei ambulant erworbener Pneumonie

The diagnosis of pneumonia is based on implicative clinical signs and symptoms and the presence of a new infiltrate on chest X-ray. Point of care lung ultrasound may be an alternative as well as an adjunct diagnostic tool. However, infiltrations in chest X-ray have poor sensitivity and specificity resulting in a positive predictive value of only 60%-75% for community-acquired pneumonia (CAP) in hospitalized patients and bear high inter observer variability. The reasons are manyfold such as coincident pulmonary diseases, variability of infiltrations during the disease course of CAP and numerous differential diagn…