抄録
Study was made of 12 cases of radiologically diagnosed cystic lesion in the lunate bone. Pathohistologically, 7 cases were interosseous ganglion and 2 cases were osteonecrosis. In MRI, interosseous ganglion showed lower intensity than the surrounding bone in T1-weighted image and higher intensity in T2-weighted image. However, osteonecrosis showed extensive lower intensity area in both T1- and T2-weighted images. The usefulness of MRI was thus suggested for cases of radiologically diagnosed cystic lesion in the lunate bone.
