Detection of breast cancer metastases in the cervical spine.

Thirty women with breast cancer and indications of possible cervical spine metastases underwent skeletal scintigraphy, conventional radiography, MR imaging and CT. By combining all examinations a diagnosis was settled in each patient and the different imaging techniques were compared. For all of the 26 patients with metastases in the cervical spine the correct diagnosis was found with MR imaging and CT. Both modalities also revealed paravertebral tumour growth, MR (n = 8) more than CT (n = 3). The sensitivity of skeletal scintigraphy in detecting metastases in the cervical spine was rather low, but as these examinations cover the whole body they are still convenient screening procedures, and combined with conventional radiography of selected areas are probably sufficient in many cases. Supplementary examinations with CT or MR would be valuable in patients with equivocal findings at screening for metastases or with clinical indications of metastases that remain unexplained after scintigraphy and radiography.