Fig. 1

Chest X-Ray and Ultrasound. On the left picture (a), the supinous chest-X ray in expirium shows a right pneumothorax, suggested by the radiolucency of the apex and the collapsed the lung parenchyma (arrowheads pointing the visceral pleural line), while the radiopacity at right lung base shows the presence of pleural effusion. As a consequence, a slight controlateral mediastinal shift is present. The right lung effusion was confirmed with the ultrasound examination, revealing a dishomogenous hyperechoic material settled in the posterior pleural cavity compatible with a huge blood clot (asterisk) as illustrated in the figure on the right (b)