Dec 9, 2025 · The deep sulcus sign on a supine chest radiograph raises suspicion of a pneumothorax.

Dec 7, 2020 · deep, sometimes tongue-like, costophrenic sulcus: deep sulcus sign 2 increased sharpness of the adjacent mediastinal margin and diaphragm increased sharpness of the cardiac …

Deep sulcus sign depicts pneumothorax in the supine position as air ascends to the non-dependent pleural space outlining the anterior costophrenic recess/sulcus.

deep sulcus sign: air in the pleural cavity collects in the anterolateral pleural space outlining the deep costophrenic angle increased clarity or sharpness of the ipsilateral hemidiaphragm

Air projecting over and lateral to the diaphragm results in increased lucency of the diaphragm and deepening of the lateral costophrenic sulcus. The deep sulcus sign may be the only finding of a …

The endotracheal tube, feeding tube, and left subclavian catheter are appropriately positioned. A left-sided "deep sulcus" sign indicates the presence of a left pneumothorax.

This case demonstrates the x-ray and CT appearance of extensive pulmonary contusion and of supine pneumothorax (deep sulcus sign). The extensive contusion and pneumothraces despite any rib …

The deep sulcus sign is concerning for pneumothorax or in this case hydropneumothorax. The increased pressure within the chest cavity compresses the lung and pushes down on the diaphragm creating a …

An example of the deep sulcus sign of pneumothorax in a supine patient. This is an important chest x-ray sign, as a large volume of pneumothorax may be present in supine patients without a pleural …

Case Discussion Reversal of the diaphragmatic dome and rounding of the ipsilateral sulcus. Hyperlucent region devoid of lung markings. Features suggest pneumothorax with presence of a deep sulcus sign.