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Table 1 patient and tumor characteristics

From: Oncologic and visual outcomes after postoperative proton therapy of localized conjunctival melanomas

Patient and tumor characteristicsN (%) or mean for continuous variables
Sex
 Male51 (55.4%)
 Female41 (44.6%)
Age63.0 [48.7–72.0]
Precancerous lesion
 de novo naevus19(20.7%) 13 (14.1%)
PAM60 (65.2%)
Clinical stage
 T163 (71.6%)
 T213 (14.8%)
 T312 (13.6%)
Pathological stage
 pT163 (72.4%)
 pT214 (16.1%)
 pT310 (11.5%)
Unifocal76 (82.6%)
Tumor epicenter bulbar77 (84.6%)
caruncle and conjunctival folds + lids14 (15.4%)
Quadrangular involvement
  < 90 degrees26 (31.0%)
 90 to 180 degrees50 (59.5%)
  > 180 degrees8 (9.3%)
Epithelioid type32 (39.5%)
Margins
 R038 (41.8%)
 R144 (48.3%)
 R29 (9.9%)
Number of mitoses3 [0–11]
Ulceration12 (14.8%)
Lymphatic emboli2 (2.4%)
Vascular emboli1 (1.2%)
Thickness (mm)2.5 [1.0–4.0]
Diameter (mm)7 [4.5–10.0]
  1. Abbreviations: T: tumor, R0: complete resection, R1: microscopic resection, R2: macroscopic resection, primary acquired melanosis (PAM)