How to pick a pneumothorax on a supine CXR

The supine chest x-ray shows a deep sulcus sign on the left, which is a radiological sign seen in supine patients with pneumothorax. The deep sulcus sign represents lucency of the lateral costophrenic angle extending towards the hypochondrium.

Deep-sulcus-sign-of-supine-pneumothorax

EMKF

The Emergency Medicine Kenya (EMK) Foundation is a not-for-profit organization registered in Kenya in 2015 that aims to ensure timely, accessible and quality lifesaving emergency care in Kenya.