Presentation
A brain cancer patient, with a history of a gun shot to the left shoulder .
Patient Data
Age: 72
Gender: Male
From the case:
Gun shot wound: impacted bullet
Frontal

Portable CXR of the patient shows a( bullet shaped ) foreign object, in the projection of left shoulder.
From the case:
Gun shot wound: impacted bullet
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Axial C+ arterial phase

On chest CT scan, the bullet is causing significant artefact, and appears impacted in the left supraspinatus muscle.
Case Discussion
The most common gun bullets are made of a lead core and are safe in an MRI environment, however, steel bullets and armour piercing bullets with a stainless steel core are not safe for MRI imaging.