Kerley lines

Kerley lines are delicate lines on the X-ray image of the lungs. They point to pathologically widened alveolar septa and lymphatics of the lungs, most often caused by heart failure. Also, pneumonia, pulmonary fibrosis and diffuse resettlement of tumor cells in the lung ( lymphangitis carcinomatosis ) may lead to visible Kerley lines.

A distinction is made between long, fine Kerley A lines more in the upper lung sections and short horizontal Kerley B lines that run into the lower lung areas close to the chest wall in the so-called costophrenischen angle (mainly right side ). Kerley C lines are cobweb- like lines over the entire lung.

The lines were described by Peter Kerley.

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