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Etymology: Peter J. Kerley, English radiologist, 1900-1979
lines resembling interstitial infiltrate that appear on chest x-ray images and are associated with certain disease conditions, such as congestive heart failure and pleural lymphatic engorgement. They are several centimeters long and may be oriented in many directions. Also called everywhere lines.
Kerley linesImaging Vague horizontal lines on AP chest CXRs, typical of mitral stenosis. See Mitral stenosis.
[P. J. Kerley, Brit. radiologist, b. 1900]
Lines present on chest radiographs of patients with any disease that causes thickening or infiltration of the interlobular septa. Those in the costophrenic angle area are called Kerley B lines, and those extending peripherally from the hilum are termed Kerley A lines. Kerley C lines are fine lines in the middle of pulmonary tissue.