[Iris metastasis in 2 patients. Importance for diagnosis and treatment of the primary tumor].

Two cases of cancer with secondary metastases to the iris were examined. In the first case, the work-ups performed after appearance of the iris lesion led to the discovery of wide spreading from the primary tumor already known and treated. An iris biopsy in the second case revealed the nature of the primary tumor which was an oat-cell lung carcinoma. We describe the frequency, the differential diagnosis and treatment for iris metastases and propose several investigations for the work-up of tumoral lesions of the iris.