Pubic ramus radiolucencies in infants: the good, the bad, and the indeterminate.

OBJECTIVE: The purpose of this study was to examine imaging findings that differentiate inflicted injuries from developmental variants of the superior pubic ramus in healthy and abused infants. CONCLUSION: A superior pubic ramus fracture and a developmental variant can be difficult to differentiate radiographically. A smoothly marginated vertical radiolucency of the superior pubic ramus detected without other features suggesting infant abuse should not be interpreted as a fracture.