Kerley A And B Lines !!top!!

| Feature | Description | |--------|-------------| | | Predominantly basal, especially costophrenic angles | | Orientation | Perpendicular to the pleura | | Length | 1–2 cm | | Thickness | 1–2 mm | | Distribution | Often bilateral and symmetrical | | Key clue | Reach the pleural surface without intersecting |

Kerley lines are not just historical eponyms – they are active, clinically useful signs that every physician interpreting chest X-rays should recognize. Whether you're in the emergency department, ICU, or outpatient clinic, spotting a Kerley B line can be the difference between treating “simple pneumonia” and lifesaving therapy for acute decompensated heart failure. kerley a and b lines

“If you see Kerley B lines, think of a failing left ventricle or a tight mitral valve.” | Feature | Description | |--------|-------------| | |

Lymphangitic carcinomatosis (cancer spreading through the lymphatic system). Pulmonary veno-occlusive disease. Sarcoidosis or silicosis (due to fibrosis and scarring). Viral or mycoplasma pneumonia. Pulmonary veno-occlusive disease