0:00

It's helpful to consider the presence of foreign

0:03

bodies when you're interpreting imaging.

0:05

So common foreign bodies and locations,

0:07

things to consider include inhalation of foreign

0:10

bodies that you'll see in the trachea

0:12

and the mainstem bronchi, remembering that they tend to

0:14

show up on the right mainstem bronchi

0:17

because of the anatomy.

0:18

Ingested foreign bodies in the esophagus or the stomach,

0:21

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

0:25

encountering those sorts of ingested foreign bodies.

0:28

Patients who come in with penetrating

0:30

injuries of gunshot wounds and other sorts

0:31

of penetrating trauma,

0:33

You want to make sure you're looking

0:34

for identifying knife tips,

0:37

bullet fragments, etc,

0:38

ballistic fragments, things to keep in mind.

0:41

And then, also retain foreign bodies from procedures

0:43

that can be iatrogenic.

0:45

It could be surgical material,

0:46

it could be any number of other types of material.

0:49

So things that should not be there,

0:51

you want to be on the lookout for,

0:52

'Hey, what is this?'

0:53

And try to characterize its location

0:56

and the substance.

0:57

So imaging to consider in foreign bodies.

1:00

So plain films are great starting points.

1:01

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

1:06

CT may be an effective tool when plain films are

1:09

unable to detect a foreign body.

1:11

And even MR may be sensitive

1:12

if we're talking about organic material,

1:15

which must be identified and it's not necessary

1:18

to show up on CT or in plain films.

1:21

Ultrasound can also be helpful for evaluation of foreign

1:23

bodies that appear radiolucent on radiographs,

1:27

such as wood or other organic material.