The pedicle sign refers to which of the following?
A) An increase in the visibility of a pedicle due to blastic disease
B) A decrease in the visibility of a pedicle due to lytic disease
C) The loss of contrast between a pedicle and the spinal canal due to an infection
D) The increase in contrast between a pedicle and the spinal canal due to hyperthyroidism
Correct Answer:
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