Geographic disparities in diagnostic screening for metastatic uveal melanoma

To evaluate current practice patterns in diagnostic screening for asymptomatic metastatic uveal melanoma. Survey. Ocular oncologists practicing in North America (United States, Canada) and Europe. Questionnaire sent to specialists participating in the Collaborative Ocular Melanoma Study (COMS) or listed in the Ophthalmic Oncology Task Force of the European Organization for Research and Treatment of Cancer. Methods used to screen patients with uveal melanoma for asymptomatic metastasis at initial presentation and follow-up. Thirty-six of 43 (84%) North American (COMS) specialists and 57 of 103 (55%) European specialists responded to the survey. At presentation, 6 of 36 (17%) North American specialists, versus 54 of 57 (95%) European specialists, performed at least one type of liver imaging study (computed tomography, magnetic resonance imaging, ultrasonography, or nuclear medicine) ( P