Demographics and tumour characteristics
| Number or ratio | |
|---|---|
| Demographics | |
| Median age (years) | 59 (range: 12–78 years) |
| Sex | M/F=11/11 |
| Laterality | RE/LE=9/13 |
| Predisposing diagnosis | |
| PAM with atypia | 16 (73%) |
| Naevus | 2 (9%) |
| De novo | 4 (18%) |
| Median duration of PAM (years) | 13 (range 2–30 years) |
| Tumour characteristics | |
| Location | |
| Bulbar conjunctiva | 7 (32%) |
| Limbal conjunctiva | 6 (27%) |
| Tarsal conjunctiva | 2 (9%) |
| Fornix | 3 (14%) |
| Plica | 2 (9%) |
| Caruncle | 2 (9%) |
| Median tumour thickness (mm) | 2 (range 2–13 mm) Not stated in 3 patients |
F, female; LE, left eye; M, male; PAM, primary acquired melanosis; RE, right eye.