| Phenotype details |
see paper; ..., normal birth, 10y-difficulty moving shoulder due to contractures both shoulder joints; joint contractures progressed slowly in extremities; 36y-unable to walk; 55y-bedridden, rigid spine, baldness, sensory hearing-loss, abnormal ossification, no respiratory failure; severe hypodactyly, short thumbs both hands, severe defect both great toes; no neurological anomalies, joint contractures, abnormal ossification; X-ray/3D-tomography extensive heterotopic bone formation, rigid spine, very short first metacarpal bones, toe malformations, defect of ossa digitorum both great toes |