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Introduction: Foreign Bodies

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It's helpful to consider the presence of foreign

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bodies when you're interpreting imaging.

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So common foreign bodies and locations,

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things to consider include inhalation of foreign

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bodies that you'll see in the trachea

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and the mainstem bronchi, remembering that they tend to

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show up on the right mainstem bronchi

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because of the anatomy.

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Ingested foreign bodies in the esophagus or the stomach,

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and any number of histories can be present when you're

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encountering those sorts of ingested foreign bodies.

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Patients who come in with penetrating

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injuries of gunshot wounds and other sorts

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of penetrating trauma,

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You want to make sure you're looking

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for identifying knife tips,

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bullet fragments, etc,

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ballistic fragments, things to keep in mind.

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And then, also retain foreign bodies from procedures

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that can be iatrogenic.

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It could be surgical material,

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it could be any number of other types of material.

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So things that should not be there,

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you want to be on the lookout for,

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'Hey, what is this?'

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And try to characterize its location

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and the substance.

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So imaging to consider in foreign bodies.

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So plain films are great starting points.

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It's relatively easy to do, low cost and low radiation.

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CT may be an effective tool when plain films are

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unable to detect a foreign body.

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And even MR may be sensitive

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if we're talking about organic material,

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which must be identified and it's not necessary

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to show up on CT or in plain films.

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Ultrasound can also be helpful for evaluation of foreign

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bodies that appear radiolucent on radiographs,

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such as wood or other organic material.

Report

Faculty

Jamlik-Omari Johnson, MD, FASER

Chair, Department of Radiology

University of Southern California

Tags

Pleural

Lungs

Emergency

Chest

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