An AP oblique lumbar projection (RPO or LPO position) obtained with the patient underrotated demonstrates
1. obscured zygapophyseal joints.
2. the pedicles closer to the lateral surface of the vertebral bodies than the midline.
3. the intervertebral foramina.
4. the inferior and superior articular processes in profile.
a. 1 and 2 only
b. 2 and 3 only
c. 3 only
d. 1, 2, and 4 only
A
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