Trans 39 and 40 Radio Correlates must knows

Question 1

Unpaired midline single bones

Answer 1

Sphenoid, ethmoid, vomer, mandible

Question 2

best way to examine the temporal bone?

Answer 2

CT scan

Question 3

5 parts of the temporal bone?

Answer 3

squamous- thinnest
mastoid - solid portion
petrous - bony portion
tympanic - 
styloid process

Question 4

The anterior and posterior ethmoid sinuses are divided by middle turbinate bony support w/c is the

Answer 4

basal lamellae

Question 5

preferred modality for sinuses

Answer 5

CT scan

Question 6

boundaries of the nasal cavity

Answer 6

boundaries:
o anteriorly:anteriornares o laterally:nasalconchae
o superiorly:cribriformplate o inferiorly: hard palate
o posteriorly: posterior choanae

Question 7

seen on radiographs as a radiolucent slit bec of the space formed by the true and false vocal cords

Answer 7

glottis

Question 8

Initialscreeningofsinusitisorfacialtrauma
o Also used to exclude the presence of metallic foreign
bodies that might contraindicate MRI

Answer 8

radiography

Question 9

Primary modality for evaluation of sinus infection and facial trauma

Answer 9

ct

Question 10

Often sufficient to diagnosis of nonsurgical mass lesions

of visceral structures

Answer 10

ultrasound

Question 11

Modality of choice for the evaluation of neoplastic lesions of the head and neck

Answer 11

mri

Question 12

angled AP radiograph of the skull
• petrous part of the pyramids, the dorsum sellae and the
posterior clinoid processes

Usually used to check for the temporal bones because it offers a good view of your temporal canals, sphenoid, and sellar structures. You would know that it’s this view by seeing the temporal bones as a bat-like structure (red). Your sphenoid would be clearly seen, and this round structure (green arrow), would be your foramen magnum.

Answer 12

AP Axial View (Towne View)

Question 13

caudally angled PA radiograph of the skull
• designed to better visualize the paranasal sinuses, especially
the frontal sinus
 In this case, it is also used to view the orbits, because the
orbit and frontal sinuses are not overlapping. When the maxillary sinus and petrous ridge overlap, that’s this view.
• petrous ridges are below orbits

Answer 13

Caldwell View

Question 14

angledPAradiographoftheskull,withthepatientgazing slightly upwards
o toassessforfacialfractures,aswellasforacutesinusitis o petrousridgesarebelowthemaxillarysinuses

a favorite view post trauma because it solves the problem of overlap between the orbits, maxillary sinus and the petrous ridge. The only problem would be you would lose visualization of your sella and foramen magnum. But it also gives the advantage of sometimes seeing your dens (odontoid process)

Answer 14

Waters View

Question 15

nasal septum and the bony parts of the nose are seen better with this view, that’s why it’s a favorite for facial fractures. You may also see the odontoid process sometimes

Answer 15

waters view

Question 16

back of patient arched as far as possible so that skull base is parallel to film
• primarily taken to demonstrate sphenoid sinuses and zygomatic arches

Answer 16

submentovertex view

Question 17

is usually done with softer x-rays or less penetrating x-rays. Because sometimes, you want to see the relationship of the nasal bone with the soft tissues and cartilages of the nose.

Answer 17

Lateral Nasal View

Question 18

zygoma, nose, and chin should touch the cassette
• optic foramen view

Special view for the optic foramen. Also called “three-point landing. Three-point meaning your zygoma, nose and chin should touch the film or the detector. But your eyebrow should be raised (not touching the detector).

Answer 18

Rhese view

Question 19

oblique radiographic projection

used to demonstrate the petrous temporal bone, internal auditory and bony labyrinth

Answer 19

Stenvers view

Question 20

if the glottic space would be obliterated that means?

Answer 20

edema of the vocal cords

Question 21

Orbits are best seen in?

Answer 21

T2 MRI

Question 22

Cornea and sclera appear * * *** on both T1 and T2 images

Answer 22

Hypointense

Question 23

Lens appears———— on both T1 and T2 images

Answer 23

hypointense

Question 24

Uveal tract appears hypo/hyperintense on T1 and hypo/hyperintense on
T2

Answer 24

hyper

hypo

Question 25

Aqueous and vitreous humor are hypointense on T1 and hyperintense on T2 true or false.

Answer 25

true

Question 26

tear drop sign and trap door fracture?

Answer 26

• Teardrop sign – orbital fat prolapses into the maxillary sinus
and may be joined by the inferior rectus muscle
• Trapdoor fracture – In children, the fracture may spring back
into place
 Like a trapdoor on the floor, when you pull through it, it
closes back up. Sometimes even if you have opacified sinus, you might not see the bulge of the bone, especially in pediatric patients.

Question 27

most common blow out fracture?

Answer 27

inferior blowout fracture

Question 28

Second most common type, occurring through the lamina papyracea
• Orbital fat and the medial rectus muscle
• May prolapse into the ethmoid air cells

what blow out fracture?

Answer 28

medial blow out fx