Clinical photograph. (a) Heterotopic ossification of the right scapular area, which functionally limited patient movement. Note the presence of pseudotumours of soft tissue at different locations in the back. (b) Column radiography showing abnormal calcification and “pseudoexostosis” indicating ligament ossification at the site of attachment. (c) Right forearm with cubit exostoses dependent on ligaments and aponeuroses. (d) Congenital malformations of the great toes. (e) Radiography of the right scapula and (f) right elbow shows abnormal calcification dependent on ligament ossification.