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PRAME IHC Expression in Melanocytic Nevi
| Type of Melanocytic Nevus |
Diffuse (4+) IHC PRAME Expression |
Focal (1 or 2+) IHC PRAME Expression |
|---|---|---|
| Common acquired nevus | 0/40 | 4/40 (1+) |
| Dysplastic (Clark’s) nevus | 0/60 | 10/60 (1+) |
| 1/60 (2+) | ||
| Blue nevus | 0/10 | 0/10 |
| Spitz nevus | 1/10 | 1/10 (1+) |
| Deep penetrating nevus | 0/3 | 0/3 |
| Traumatized/ recurrent nevus | 0/15 | 1/15 (2+) |
| 1/15 (1+) | ||
| Congenital nevus | 0/2 | 0/2 |
| Nodal nevus | 0/5 | 0/5 |
| Total | 1/145 | 18/145 |
