Fig. 1
From: Pitfalls in the diagnosis of common benign bone tumours in children
Normal variants commonly misinterpreted as bone tumours: a Asymmetric closure of the ischio-pubic synchondrosis, with a pseudotumoral aspect on the left side (arrow). b Supra-condylar process of the humerus (arrowhead). c, d Cortical desmoid of the distal femoral metaphysis (arrows). e Ultrasound: longitudinal scan of the posterior femoral metaphysis demonstrates the bone irregularity of a cortical desmoid (arrowhead) and the insertion of the medial gastrocnemius head (arrow)