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Iris nevus and melanoma and fluorescein angiographic features
| Characteristics | Nevus, n (%) | Melanoma, n (%) | p value |
|---|---|---|---|
| Feeder vessels | 0.002 | ||
| Present | 0 (0) | 17 (43) | |
| Central | 0 (0) | 1 (6) | |
| Peripheral | 0 (0) | 15 (88) | |
| Both | 0 (0) | 1 (6) | |
| Intrinsic vessels | 0.001 | ||
| Present | 5 (33) | 33 (83) | |
| Loops | 0 (0) | 12 (36) | |
| Lacy | 5 (100) | 21 (64) | |
| Fluorescein leakage present | 9 (60) | 39 (98) | 0.001 |
| Silent pattern | 3 (20) | 0 (0) | 0.0173 |
| Intrinsic vessels +/− feeder vessels | |||
| Sensitivity | 0.85 | ||
| Specificity | 0.67 | ||
| PPV | 0.87 | ||
| NPV | 0.62 |
