PATHOLOGY MCQ
BILIARY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The sternal angle
|
|
|
T3 or T4
|
|
|
T5 or T6
|
|
|
T7
|
Detailed explanation-1: -The right anterior oblique (RAO) position is usually used in preference to the left anterior oblique (LAO) position. An RAO position of 35°-40° gives a wider space for an image of the esophagus between the vertebrae and the heart. The LPO position may also be recommended.
Detailed explanation-2: -Cross-sectional imaging is most useful for detection of GERD complications, specifically strictures (peptic or Barrett) and adenocarcinoma, although dynamic MRI has been shown to be feasible as a radiation-free imaging method for evaluation of swallowing with excellent accuracy (17–19).
Detailed explanation-3: -Angle the central ray (CR) 30° to 40° cephalad with AP projection. For a PA axial oblique large intestine projection (RAO position), the: central ray is angled 30 to 40 degrees caudad.