Pneumonia chest x ray: Difference between revisions
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==Overview== | ==Overview== | ||
An important test for pneumonia in unclear situations is a chest [[x-ray]]. Chest x-rays can reveal areas of opacity (seen as white) which represent consolidation. Pneumonia is not always seen on x-rays, either because the disease is only in its initial stages, or because it involves a part of the lung not easily seen by x-ray. | An important test for pneumonia in unclear situations is a chest [[x-ray]]. Chest x-rays can reveal areas of opacity (seen as white) which represent consolidation. Pneumonia is not always seen on x-rays, either because the disease is only in its initial stages, or because it involves a part of the lung not easily seen by x-ray. | ||
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If a person is not getting better with antibiotics, or if the health care provider has concerns about the diagnosis, a [[microbiological culture|culture]]of the person's [[sputum]] may be requested. | If a person is not getting better with antibiotics, or if the health care provider has concerns about the diagnosis, a [[microbiological culture|culture]]of the person's [[sputum]] may be requested. | ||
===Imaging=== | ===Imaging=== | ||
[[Image:Pneumonia_x-ray.jpg|Right|200px|'''Pneumonia as seen on chest x-ray.''' | |||
''A'': Normal chest x-ray. ''B'': Abnormal chest x-ray with shadowing from pneumonia in the right lung (white area, left side of image).]] | |||
* [[X-ray]]s of the chest (reveal areas of opacity). A normal chest x-ray makes CAP less likely; however, CAP is sometimes not seen on x-rays because the disease is either in its initial stages or involves a part of the lung not easily seen by x-ray. | * [[X-ray]]s of the chest (reveal areas of opacity). A normal chest x-ray makes CAP less likely; however, CAP is sometimes not seen on x-rays because the disease is either in its initial stages or involves a part of the lung not easily seen by x-ray. | ||
* [[Computed tomography]] in situations of diagnostic dilema. | * [[Computed tomography]] in situations of diagnostic dilema. |
Revision as of 16:27, 5 September 2012
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Editor(s)-in-Chief: C. Michael Gibson, M.S., M.D. [1] Phone:617-632-7753; Philip Marcus, M.D., M.P.H.[2]
Overview
An important test for pneumonia in unclear situations is a chest x-ray. Chest x-rays can reveal areas of opacity (seen as white) which represent consolidation. Pneumonia is not always seen on x-rays, either because the disease is only in its initial stages, or because it involves a part of the lung not easily seen by x-ray.
In some cases, chest CT (computed tomography) can reveal pneumonia that is not seen on chest x-ray.
X-rays can be misleading, because other problems, like lung scarring and congestive heart failure, can mimic pneumonia on x-ray.[1] Chest x-rays are also used to evaluate for complications of pneumonia. (See below.)
If a person is not getting better with antibiotics, or if the health care provider has concerns about the diagnosis, a cultureof the person's sputum may be requested.
Imaging
- X-rays of the chest (reveal areas of opacity). A normal chest x-ray makes CAP less likely; however, CAP is sometimes not seen on x-rays because the disease is either in its initial stages or involves a part of the lung not easily seen by x-ray.
- Computed tomography in situations of diagnostic dilema.
References
- ↑ Syrjala H, Broas M, Suramo I, et al. High resolution computed tomography for the diagnosis of community-acquired pneumonia. Clin Infect Dis 1998; 27:358-363 PMID 9709887