Kerley Lines <90% RELIABLE>

Peter Kerley originally distinguished between "A," "B," and "C" lines based on their anatomical location and radiographic appearance.

: Pulmonary fibrosis and pneumoconiosis. Diagnostic Evolution In modern practice, High-Resolution Computed Tomography (HRCT) has become the gold standard for visualizing these structures, where they appear as smooth or nodular interlobular septal thickening. Furthermore, the Fleischner Society recently updated its glossary to recommend more descriptive terms like "interstitial pattern" or "septal thickening" over the eponymous Kerley lines to improve diagnostic clarity. Would you like to explore how kerley lines

are radiological signs seen on chest X-rays, indicating interstitial pulmonary edema . They represent thickened interlobular septa due to fluid accumulation, fibrosis, or cellular infiltration. Peter Kerley originally distinguished between "A," "B," and

Septal lines in lung | Radiology Reference Article | Radiopaedia.org Septal lines in lung | Radiology Reference Article

The chest radiograph remains a cornerstone diagnostic tool in the assessment of respiratory and cardiac distress. Among the various signs utilized to diagnose pulmonary pathology, Kerley lines are a specific indicator of interlobular septal thickening. These lines are not primary disease entities but rather a radiographic symptom of underlying physiological disruptions, primarily involving the pulmonary lymphatic system and interstitial fluid dynamics. Understanding the distinction between the three types of Kerley lines (A, B, and C) is essential for clinicians in differentiating between cardiogenic pulmonary edema, viral pneumonia, and neoplastic infiltration.

When interpreting Kerley lines, consider the following differential diagnoses:

They were first described by British radiologist Peter Kerley in 1933.