Case report 720. Multicentric mixed tumor of bone with pulmonary involvement.

A man presented with a mass in the left first metacarpal bone. Later, his chest radiograph showed extensive, bilateral, rounded opacities in both lungs with enlarged hilar lymph nodes, and he developed expanding lesions in the left radius, ulna, and metacarpal bones. The pulmonary lesions were treated with radiotherapy and cytotoxic agents, and the tumor mass in the first metacarpal was debulked.

Spondylolysis of the axis. A case report and review of the literature.

Bilateral congenital defects in the pedicles of the second cervical vertebra were noted on conventional X-rays and tomography of a 42-year-old male. He had been assaulted after which he suffered upper neck and occipital pain. Subsequent CT scanning demonstrated the incomplete nature of the axis defects.

Semilunar osteoblastic metastases in breast carcinoma. A new radiological sign.

Forty-seven cases of osteoblastic skeletal metastases were examined, of which 26 were from primary carcinoma of the breast. In two of these cases the metastases were of an unusual semicircular configuration. In each case the patient survived for at least four years after the discovery of metastases.

Multiple lumbar spondylolyses with transverse process pseudo-arthroses. A case report.

An unusual case of multiple spondylolyses, spondylolisthesis at L5/S1, and pseudo-arthroses of the transverse processes of L4 is described.