Churg-Strauss syndrome other diagnostic studies: Difference between revisions
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==Other Diagnostic Studies== | ==Other Diagnostic Studies== | ||
The following studies can be helpful in diagnosing [[eosinophilic granulomatosis with polyangiitis]]. | The following studies can be helpful in diagnosing [[eosinophilic granulomatosis with polyangiitis]]. | ||
*Pulmonary function tests: | *[[Spirometry|Pulmonary function tests]]: | ||
**Spirometry findings are consistent with asthma. | **[[Spirometry]] findings are consistent with asthma. | ||
***Decreased total vital capacity | ***Decreased total [[vital capacity]] | ||
***Decreased | ***Decreased functional vital capacity | ||
***Decreased FEV1/FVC ratio | ***Decreased [[FEV1/FVC ratio|FEV1/FVC]] ratio | ||
***Decreased diffusion capacity | ***Decreased [[diffusion capacity]] | ||
*[[Bronchoalveolar lavage]]: | *[[Bronchoalveolar lavage]]: | ||
**Shows marked [[eosinophilia]]. Presence of marked [[eosinophilia]] on [[bronchoalveolar lavage]] is not specific for the diagnosis of [[eosinophilic granulomatosis with polyangiitis]]. | **Shows marked [[eosinophilia]]. Presence of marked [[eosinophilia]] on [[bronchoalveolar lavage]] is not specific for the diagnosis of [[eosinophilic granulomatosis with polyangiitis]]. | ||
Revision as of 20:06, 4 April 2018
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Other Diagnostic Studies
The following studies can be helpful in diagnosing eosinophilic granulomatosis with polyangiitis.
- Pulmonary function tests:
- Spirometry findings are consistent with asthma.
- Decreased total vital capacity
- Decreased functional vital capacity
- Decreased FEV1/FVC ratio
- Decreased diffusion capacity
- Spirometry findings are consistent with asthma.
- Bronchoalveolar lavage:
- Shows marked eosinophilia. Presence of marked eosinophilia on bronchoalveolar lavage is not specific for the diagnosis of eosinophilic granulomatosis with polyangiitis.
- Biopsy
- Because of the multiple organ involvements, the biopsy should be obtained from any of the following organ sites:
- Biopsy findings may include eosinophilic infiltration, vasculitis of small and medium-sized vessels and granuloma formation.