Asymmetric closure of ischiopubic synchondrosis

Lucency in relation of right ischipubic ramus. This likely represents asymmetrically enlarged ischiopubic synchondrosis is a well-known and frequent finding on radiologic workup of prepubertal children, and is a normal variant which can be misinterpreted.

 Reference - Am J Roentgenol. 2004 Feb;182(2):361-5. Asymmetric closure of ischiopubic synchondrosis in pediatric patients: correlation with foot dominance.