A longitudinal US image shows a "pseudokidney" sign of intussusception (arrows). Arrowheads point to enlarged mesenteric lymph nod...

Chest radiograph shows a very large left pneumothorax (stars) causing mass effect to the mediastinum (shifting, arrows), deep costophrenic s...

AP view of the foot shows a small avulsion fracture (arrow) of the lateral process of the talus. Facts: Lateral Process of Talus Lateral p...

Axial CT image shows an ileal diverticulum (arrow) with surrounding inflammation (arrowheads). Thin arrow = normal appendix. Sagittal CT ima...

Axial CT image shows perihilar peribronchovascular thickening (arrows) and several small ill-defined nodules in the peribronchovascular dist...