Figure 18: Fracture mimicking calcific tendinitis. (a) A large displaced avulsion fracture of the greater tuberosity is present (white arrowhead). The avulsion somewhat resembles calcific tendinopathy, although incomplete cortication of the avulsion fragment in addition to an adjacent donor site (black arrowhead) allows the diagnosis of avulsion fracture to be made. (b) Calcific tendinopathy of the subscapularis (arrow) resembling an avulsion of the rotator cuff. However, calcific tendinopathy has a rounded and more amorphous appearance of the calcification with no fracture donor site being present.