MRI in Diagnosing Solid Tumors of the Eye and Orbit

PRIMARY OBJECTIVES: I. To determine the feasibility of DCE-MRI (dynamic contrast enhanced magnetic resonance imaging) as non-invasive imaging tool to image contrast enhancement in ocular and orbital tumors. II. To compare contrast enhancement and its distribution within orbital tissue. III. To assess potential differences in contrast enhancement which help to characterize malignant lesions as well as discriminate these from benign tissue. IV. To compare image characteristics between clinical high field end ex-vivo ultra high field magnetic resonance (MR) imaging. V. To correlate imaging findings with obtained histology by comparing contrast enhancement parameters, e.g. maximum signal intensity, to histology characteristics, e.g. vascular density. OUTLINE: Patients undergo DCE-MRI. After completion of study treatment, patients are followed up every 6 months for up to 5 years.