[Calcinosis of the supraspinal ligament--a rare secondary finding].

The supraspinal ligament calcification of thoracic spine is a rare roentgenographic finding. If this calcificated ligament is fractured several times it may be possible to misinterpret it as rib serial fractures, if it is overshadowed by dorsal ribs in the side projection of thorax. According to Resnick (4) such a ligamentous calcification is found within the overall framework of the "DISH"-syndrome.