A 34-year-old man presents to the emergency department after…

A 34-year-old man presents to the emergency department after twisting his ankle while playing soccer. He reports immediate pain around the medial ankle and is unable to bear weight. Examination reveals tenderness over the medial malleolus, mild swelling of the ankle, and tenderness along the proximal lateral calf. Ankle radiographs demonstrate widening of the medial clear space without an obvious distal fibular fracture. Additional radiographs of the tibia and fibula are obtained and are shown below. Which of the following is the most accurate diagnosis and appropriate next step?

A 3-year-old child presents to the clinic with a fever, insp…

A 3-year-old child presents to the clinic with a fever, inspiratory stridor, hoarseness, and a harsh “barky” cough. A frontal neck radiograph demonstrates symmetric tapering of the upper trachea. Which radiographic finding is most consistent with this patient’s diagnosis?

A 30-year-old man is brought to the emergency department aft…

A 30-year-old man is brought to the emergency department after a motor vehicle collision. He develops acute respiratory distress, hypotension, tachycardia, and absent breath sounds over the right hemithorax. The chest radiograph is shown below. Which of the following radiographic findings is most consistent with the diagnosis?