Detail of an AP pelvis radiograph with representative findings of focal pincer subtype with cephalad crossover sign, CEA of 33 degrees and ischial spine sign (yellow arrow). Note the posterior wall (blue line) passing through center of femoral head (red dot) and the anterior wall (black line) lateral to the posterior wall proximal to the crossover point. The black arrow shows alignment of coccyx with pubic symphysis. Note that although floor of acetabular fossa meets ilioischial line which some would consider coxa profunda, this study classifies this hip as focal acetabular overcoverage.