Question 1

What is the maximum CR angulation used for the axiolateral oblique projection of the mandible?

Accepted Answer

A)   10° to 15°
B)   25°
C)   30°
D)   45°E) None of the above
F) A) and B)

Question 2

What is the position of the skull for an axiolateral projection (Schuller method) of the TMJ?

Accepted Answer

A)   Midsagittal plane at a 53° angle to the image receptor
B)   Skull rotated 15° toward the IR from the lateral position
C)   True lateral position
D)   OML is at a 37° angle to the image receptorE) A) and B)
F) None of the above

Question 3

Which of the following modalities best demonstrates early signs of Paget's disease of the skull?

Accepted Answer

A)   CT
B)   Nuclear medicine
C)   MRI
D)   SonographyE) A) and B)
F) All of the above

Question 4

A patient comes to radiology for a sinus series.She cannot fully extend her head and neck for the submentovertex projection.What else can the technologist do to produce a diagnostic submentovertex projection?

Accepted Answer

A)   Angle the CR to place it perpendicular to the OML.
B)   Angle the CR to place it perpendicular to IOML.
C)   Perform the projection with the patient recumbent.
D)   Place sandbags on the forehead to extend the skull.E) All of the above
F) C) and D)

Question 5

The posterior aspect of the orbit is termed the:

Accepted Answer

A)   apex.
B)   base.
C)   sphenoid strut.
D)   crown.E) B) and C)
F) None of the above A

Question 6

Match each radiographic appearance with the corresponding pathologic indication.(Use each selection only once.) 
-Increased densities replace mastoid air cells

Accepted Answer

A)  Otosclerosis
B)  Acoustic neuroma
C)  Cholesteatoma
D)  MastoiditisE) All of the above
F) C) and D)

Question 7

Which bone is involved with a tripod fracture?

Accepted Answer

A)   Maxilla
B)   Ethmoid
C)   Temporal
D)   ZygomaticE) None of the above
F) C) and D)

Question 8

Where is the CR centered for a lateral projection of the sinuses?

Accepted Answer

A)   Upside EAM (side away from image receptor) 
B)   At the level of the nasion
C)   Midway between the acanthion and the EAM
D)   Midway between the outer canthus and the EAME) C) and D)
F) A) and C)

Question 9

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) 
-Distinctive lesions with moth-eaten appearance,a combination of increased density and destructive irregular border lesions

Accepted Answer

A)  Multiple myeloma
B)  Paget's disease
C)  Metastases
D)  Pituitary adenomaE) None of the above
F) B) and D)

Question 10

The ethmoid notch is part of which cranial bone?

Accepted Answer

A)   Temporal
B)   Ethmoid
C)   Sphenoid
D)   FrontalE) A) and B)
F) None of the above

Question 11

Which cranial bone possesses the superior nasal conchae?

Accepted Answer

A)   Ethmoid
B)   Sphenoid
C)   Frontal
D)   TemporalE) B) and C)
F) A) and D) A

Question 12

A radiograph of a parietoacanthial (Waters) projection for sinuses reveals that the petrous pyramids are projected over the maxillary sinuses.What positioning error is present on this radiograph?

Accepted Answer

A)   Excessive flexion
B)   Excessive extension
C)   Excessive CR angulation
D)   Rotation of the headE) C) and D)
F) None of the above

Question 13

What is the only paranasal sinus not contained within a cranial bone?

Accepted Answer

A)   Maxillary
B)   Sphenoid
C)   Ethmoid
D)   FrontalE) B) and D)
F) A) and B)

Question 14

An axiolateral oblique projection (Law method) for the temporomandibular joints on a brachycephalic type of skull would require ____ rotation as compared with an average-shaped skull.

Accepted Answer

A)   more
B)   less
C)   the same
D)   Rotation depends on the patient's age.E) B) and C)
F) A) and D) B

Question 15

The recommended digital systems kV range for the superoinferior tangential projection of the nasal bones is:

Accepted Answer

A)   40 to 50.
B)   50 to 60.
C)   60 to 70.
D)   75 to 85.E) A) and D)
F) All of the above

Question 16

The submentovertex projection requires that the inferior OML (IOML)is placed parallel to the image receptor.

Accepted Answer

A) True 
 B)False

Question 17

The proper name for the parieto-orbital oblique projection is the Schuller method.

Accepted Answer

A) True 
 B)False

Question 18

All of the sinuses intercommunicate with each other and with the nasal cavity.

Accepted Answer

A) True 
 B)False

Question 19

Where is the CR centered for a lateral projection of the cranium?

Accepted Answer

A)   EAM
B)   Three-fourths inch (2 cm)  anterior and 3/4 inch (2 cm)  superior
C)   Two inches (5 cm)  superior to EAM
D)   Midway between EAM and nasionE) A) and C)
F) A) and D)

Question 20

Match each radiographic appearance with the corresponding pathologic indication.(Use each selection only once.) 
-Bone destruction most commonly involving middle ear

Accepted Answer

A)  Otosclerosis
B)  Acoustic neuroma
C)  Cholesteatoma
D)  MastoiditisE) A) and B)
F) All of the above

Exam 11: Cranium, Facial Bones, and Paranasal Sinuses

What is the maximum CR angulation used for the axiolateral oblique projection of the mandible?

Correct AnswerverifiedShow Answer

What is the position of the skull for an axiolateral projection (Schuller method) of the TMJ?

Correct AnswerverifiedShow Answer

Which of the following modalities best demonstrates early signs of Paget's disease of the skull?

Correct AnswerverifiedShow Answer

A patient comes to radiology for a sinus series.She cannot fully extend her head and neck for the submentovertex projection.What else can the technologist do to produce a diagnostic submentovertex projection?

Correct AnswerverifiedShow Answer

The posterior aspect of the orbit is termed the:

Correct AnswerverifiedA

Match each radiographic appearance with the corresponding pathologic indication.(Use each selection only once.) -Increased densities replace mastoid air cells

Correct AnswerverifiedShow Answer

Which bone is involved with a tripod fracture?

Correct AnswerverifiedShow Answer

Where is the CR centered for a lateral projection of the sinuses?

Correct AnswerverifiedShow Answer

Match each of the following radiographic appearances with the corresponding pathologic indication.(Use each selection only once.) -Distinctive lesions with moth-eaten appearance,a combination of increased density and destructive irregular border lesions

Correct AnswerverifiedShow Answer

The ethmoid notch is part of which cranial bone?

Correct AnswerverifiedShow Answer

Which cranial bone possesses the superior nasal conchae?

Correct AnswerverifiedA

A radiograph of a parietoacanthial (Waters) projection for sinuses reveals that the petrous pyramids are projected over the maxillary sinuses.What positioning error is present on this radiograph?

Correct AnswerverifiedShow Answer

What is the only paranasal sinus not contained within a cranial bone?

Correct AnswerverifiedShow Answer

An axiolateral oblique projection (Law method) for the temporomandibular joints on a brachycephalic type of skull would require ____ rotation as compared with an average-shaped skull.

Correct AnswerverifiedB

The recommended digital systems kV range for the superoinferior tangential projection of the nasal bones is:

Correct AnswerverifiedShow Answer

The submentovertex projection requires that the inferior OML (IOML)is placed parallel to the image receptor.

Correct AnswerverifiedShow Answer

The proper name for the parieto-orbital oblique projection is the Schuller method.

Correct AnswerverifiedShow Answer

All of the sinuses intercommunicate with each other and with the nasal cavity.

Correct AnswerverifiedShow Answer

Where is the CR centered for a lateral projection of the cranium?

Correct AnswerverifiedShow Answer

Match each radiographic appearance with the corresponding pathologic indication.(Use each selection only once.) -Bone destruction most commonly involving middle ear

Correct AnswerverifiedShow Answer

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