- Pulmonary edema is common
incongestive heart failure.
- As pulmonary capillary pressures
increase, the initial fluid excess is removed by
increased lymphatic drainage.
- When lymphatic system capacity is
exceeded, pulmonary edema occurs. Radiographic
signs include septal lines, bronchial wall
thickening and subpleural pulmonary edema.
- This radiograph illustrates
generalized fissural thickening and lack of
clarity of intrapulmonary vessels and septal
lines. Figure and
description from "Imaging Diseases of the
Chest" , p. 388, by Peter Armstrong, Alan G.
Wilson, and Paul Dee, Yearbook Medical
Publishers, Inc. 1990.
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