Metastatic tumors of the orbit.

A wide variety of metastatic tumors can invade the orbit. The incidence of orbital metastases varies in different studies and may be increasing. The most common tumors in children and adults are enumerated. The clinical features are given and diagnostic techniques listed. The value of the carcinoembryonic antigen is shown by data and a case report. The prognosis and treatment of orbital metastases are detailed with specific reference to breast cancer. The estrogen receptor assay is described and its usefulness illustrated with a case report.