| Phenotype details |
see paper; ..., 21y-onset heterotopic ossification; progressive heterotopic ossification in characteristic anatomic patterns; proximal medial tibial osteochondromas; short broad femoral necks; characteristic short monophalangic great toe, missing middle phalanges of 4th and 5th toes bilaterally; intra-articular synovial osteochondromatosis of hips, DJD hips; cerebral cavernous malformations |