Fig 4. Normal pubic apophyses in a male subject of 21 years age. (A) Xray shows subtle subarticular lucency of open physes at the mid-3rds of each pubic bone. (B) corresponding ultrasound shows smooth & continuous bone surface contours of closed upper physeal segments on each side, but interrupted cortical contours of still open physeal segments at mid-symphysis level. Note the symmetric appearance which includes physeal plate thickness. Arrows = secondary centres of ossification. Arrowheads = physeal plates.
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