The costal margin is the medial margin formed by the cartilages of the seventh to tenth ribs. It attaches to the body and xiphoid process of the sternum.[2]
Pain across the costal margin is most commonly caused by costochondritis.[6]
The costal paradox, also known as Hoover's sign and the costal margin paradox, is a sign where the costal angle decreases upon inspiration rather than increasing, indicating chronic obstructive pulmonary disease.[2]
↑ Mack, Savannah M.; Wu, Ching-Wen; Zhang, Chuanzhen; Richard Harding; Pinkerton, Kent E. (2020-01-01), "Lung Anatomy and Aging☆", Reference Module in Biomedical Sciences, Elsevier, ISBN978-0-12-801238-3, retrieved 2021-01-04
This page is based on this Wikipedia article Text is available under the CC BY-SA 4.0 license; additional terms may apply. Images, videos and audio are available under their respective licenses.