Objective  To determine features that are predictive of growth of choroidal nevi into melanoma.

Methods  This was a retrospective medical record review of 2514 consecutive eyes; Kaplan-Meier estimates and Cox regression analyses were used.

Results  The median tumor basal diameter was 5.0 mm and thickness was 1.5 mm. Nevus growth into melanoma occurred in 2%, 9%, and 13% of eyes at 1, 5, and 10 years, respectively. Factors predictive of growth into melanoma by multivariable analysis included tumor thickness greater than 2 mm (P < .001), subretinal fluid (P = .002), symptoms (P = .002), orange pigment (P < .001), tumor margin within 3 mm of the optic disc (P = .001), ultrasonographic hollowness (P < .001), and halo absence (P = .009). A mnemonic device to recall risk factors of ocular melanoma is "To find small ocular melanoma using helpful hints," representing thickness, fluid, symptoms, orange pigment, margin, ultrasonographic hollowness, and halo absence. The median hazard ratio for those with 1 to 2 risk factors was 3; for 3 or 4 factors, 5; for 5 to 6 factors, 9; and for all 7 factors, 21.

Conclusions  In an analysis of 2514 choroidal nevi, factors predictive of growth into melanoma included greater thickness, subretinal fluid, symptoms, orange pigment, margin near disc, and 2 new features: ultrasonographic hollowness and absence of halo.

Objective  To determine the rate of metastasis of uveal melanoma on the basis of tumor thickness in millimeters.

Methods  Retrospective medical record review.

Results  The mean (median) patient age was 58 (59) years. A total of 8033 eyes were examined. Of the 285 eyes with iris melanoma, the mean tumor thickness was 2.7 mm and metastasis occurred in 0.5%, 4%, and 7% at 3, 5, and 10 years, respectively. Of the 492 eyes with ciliary body melanoma, the mean tumor thickness was 6.6 mm and metastasis occurred in 12%, 19%, and 33% at 3, 5, and 10 years, respectively. Of the 7256 eyes with choroidal melanoma, the mean tumor thickness was 5.5 mm and metastasis occurred in 8%, 15%, and 25% at 3, 5, and 10 years, respectively. For all uveal melanoma, metastasis at 5, 10, and 20 years was 6%, 12%, and 20% for small melanoma (0-3.0 mm thickness), 14%, 26%, and 37% for medium melanoma (3.1-8.0 mm), and 35%, 49%, and 67% for large melanoma (>8.0 mm). More specifically, metastasis per millimeter increment at 10 years was 6% (0-1.0 mm thickness), 12% (1.1-2.0 mm), 12% (2.1-3.0 mm), 16% (3.1-4.0 mm), 27% (4.1-5.0 mm), 28% (5.1-6.0 mm), 29% (6.1-7.0 mm), 41% (7.1-8.0 mm), 50% (8.1-9.0 mm), 44% (9.1-10.0 mm), and 51% (>10.0 mm). Clinical factors predictive of metastasis by multivariate analysis included increasing patient age, ciliary body location, increasing tumor diameter, increasing tumor thickness, having a brown tumor, and the presence of subretinal fluid, intraocular hemorrhage, or extraocular extension.

Conclusion  Increasing millimeter thickness of uveal melanoma is associated with increasing risk for metastasis.

Objective  To determine the primary sites, clinical features, treatment, and outcome of 20 patients with cancer metastatic to the eyelids.

Methods  Retrospective review of medical records.

Results  The primary tumors included skin melanoma (4 [20%]), uveal melanoma (4 [20%]), breast carcinoma and conjunctival melanoma (3 [15%] each), renal cell carcinoma (2 [10%]), and medullary thyroid carcinoma, prostate carcinoma, lung carcinoma, and salivary gland carcinoma (1 [5%] each). Eyelid metastasis was the first sign of systemic cancer in 3 patients (15%). The most common clinical finding at the initial examination was a solitary nodule in 12 patients (60%), a flat pigmented lesion and diffuse eyelid swelling in 3 patients each (15%), and multiple nodules and epiphora in 1 patient (5%) each. Ten patients (50%) had concomitant ocular site metastasis. Primary treatment included excision alone in 6 patients (30%), external beam radiotherapy in 7 (35%), systemic chemotherapy in 4 (20%), and observation in 3 (15%). The metastatic tumors regressed in 10 patients (50%), remained stable in 7 (35%), and showed progression in 3 (15%). After a mean follow-up of 16 months, 9 patients (45%) were alive and 11 (55%) had died of systemic metastatic disease.

Conclusions  Eyelid metastasis can display a variety of clinical features and should be considered in patients with known systemic cancer. These patients usually have multiple metastatic sites, ocular and nonocular. The systemic prognosis is poor.

Objective  To evaluate irradiation toxic effects from fluoroscopy during intra-arterial chemotherapy for retinoblastoma.

Design  Prospective trial.

Participants  Eight patients treated with intra-arterial chemotherapy.

Main Outcome Measures  Irradiation toxic effects in vital organs.

Results  The mean patient age was 29 months (range, 10-74 months) and 63% were male. The mean irradiation dose to the skin of the affected eye was 0.19173 Gy, to the contralateral eye was 0.03533 Gy, to the chest wall was 0.00296 Gy, and to the abdominal wall was 0.00104 Gy. The estimated irradiation dose to the lens in the treatment eye was 0.16 Gy, which, in accumulated doses, could be cataractogenic. The estimated irradiation dose from a single fluoroscopy session to other organs, including the brain (0.05560 Gy), thyroid (0.00192 Gy), bone marrow (0.00059 Gy), and gonads (0.00015 Gy), was far lower than the minimal toxic level.

Conclusions  Careful use of fluoroscopy during intra-arterial chemotherapy with limited irradiation exposure is advised. Accumulated irradiation toxic effects following multiple sessions of intra-arterial chemotherapy could be cataractogenic and possibly carcinogenic, especially in irradiation-sensitive patients with retinoblastoma.