Home > Cases > Main Index > Case 79 | Variant Index  

SRS-X The SRS Educational Resource

Case 79

Susceptibility artefact - Metallic foreign bodies

Hair on fire

This MR image is of the head of a healthy individual.

Findings

This is a coronal T1 weighted image from an MR examination.

There is distortion of the image along the scalp of this patient, indicating the presence of ferromagnetic material causing susceptibility artefact due to distortion of the local magnetic field.

Diagnosis

Susceptibility artefact - Metallic foreign bodies

Discussion

The patient was a welder. Although he was unaware of their presence, small metal fragments had become embedded in his hair or scalp during his work. Certain hair products that contain iron may produce a similar appearance. Mascara may have a similar effect, distorting images of the orbits.

Main Index  |   Previous Case

Variant Index  |   Previous Case

Main Index as Unknowns

Variant Index as Unknowns