Hello doctors, what does an mri of the ankle show exactly ?

Allows detail: An MRI is magnetic resonance imaging and gives clearer detail of anatomy than a standard xray by being able to differentiate between various structures - bone, tendon, muscle, nerve, artery, vein etc.

Imaging of ankle: Mri reveals soft tissue/fluid, tendon, ligaments, and vascular structures. Damage/injury can be seen with this type of imaging since it reveals/compares densities of fluid/water. Ligament rupture information, location and extent of damage is valuable information in treatment plan, diagnosis and prognosis. Nuclear(affects atoms) magnetic (big magnet) resonance (activity) imaging.