Orbital metastasis from cutaneous melanoma.

Although orbital extension from ocular melanoma occurs frequently in advanced cases, orbital metastasis from cutaneous melanoma has been reported but eight times previously. We have reported two such cases. One of the patients had three previous primary melanomas; the other had metastasis to the cauda equina. Both patients died when orbital involvement developed years after the initial lesions. Ours are the first cases to include CT and MRI findings in metastatic orbital melanoma.