Kerley B - Lines

These lines represent , the connective tissue structures that separate the lung's secondary lobules. This thickening usually occurs due to:

For decades, radiologists debated the exact nature of Kerley B lines. Thanks to pathological correlation studies, we now know they represent —the connective tissue partitions that divide the lung into small anatomical units called secondary pulmonary lobules. kerley b lines

A 55-year-old with breast cancer presents with progressive dyspnea over weeks. Chest X-ray reveals in the right lower lobe, with no cardiomegaly. Diagnosis: Lymphangitic carcinomatosis. Need for CT chest and possible bronchoscopy. These lines represent , the connective tissue structures

Kerley B lines can be caused by a variety of conditions that lead to interstitial lung disease. Some of the most common causes include: A 55-year-old with breast cancer presents with progressive

Cellular infiltration or lymphatic engorgement can also make these septa visible.