Table 2.

Histology of uveal melanoma patients in Ireland from 2010 to 2015

Patients (n = 79)	n (%)
Histology
Epitheloid	12 (15)
Spindle	33 (42)
Mixed	34 (43)
Monosomy 3/chromosome 8
+ Monosomy 3 + chromosome 8 abnormality	25 (32)
+ Monosomy 3 – chromosome 8 abnormality	13 (l6)
– Monosomy 3 + chromosome 8 abnormality	19 (24)
– Monosomy 3 – chromosome 8 abnormality	15 (19)
Data not available	7 (9)

+, presence of monosomy 3/chromosome 8 abnormality; –, absence of monosomy 3/chromosome 8 abnormality. Note: it was not routine practice to perform cytology on patients undergoing brachytherapy treatment, hence, the vast majority of histology samples were from patients who underwent enucleation.