Table 3.
Select histopathologic features of all neurotropic melanomas (NMs) with local recurrence during the study period
| ID | Arm | Site | Thickness (mm) | Desmoplasia | Closest margin (mm) | PNI (largest diameter) |
|---|---|---|---|---|---|---|
| RTN-031 | Obs | Lip | 8 | Present | 10 | Multifocal (0.2 mm) |
| RTN-040 | Obs | Scalp | 3 | None | 3.4 | Unknown |
| RTN-046 | Obs | Neck | 15 | Present | 2.8 | Unknown |
| RTN-047 | Obs | Neck | 4.6 | None | 1.1 | Multifocal (0.1 mm) |
| RTN-006 | RT | Lip | 7 | Present | 5 | Unknown |
| RTN-009 | RT | Lip | 3.8 | Present | 5 | Multifocal (unknown) |
PNI perineural invasion; Obs observation; RT radiation therapy