To visualize vascular sling causing tracheal/external airway compression which of the following would you best prefer?

Radiology

To visualize vascular sling causing tracheal/external airway compression which of the following would you best prefer?

All of the following form radiolucent stones except:

The usual radiographic appearance of an osteosarcoma is:

A middle aged female presents with slowly progressive weakness of lower limbs,…