猪佝偻病，肋软骨交界处骨骺肿大

A. Swollen epiphysis of the costochondral junction from an 8-week-old pig with metabolic bone disease (rickets). B. Multiple calluses from previous rib fractures (arrow) and swollen epiphyses of costochondral junctions typical of the “rachitic rosary” of rickets (arrowhead).