New Onset Diplopia in Patients with Nasopharyngeal Carcinoma following Concurrent Chemoradiotherapy: Clinical Features and Etiology

Table 1

Clinical characteristics and outcome in NPC patients with new onset diplopia in relation to etiology.

	Tumor recurrence; = 12 (52%)	Skull base ORN; = 3 (13%)	Radiation neuropathy; = 8 (35%)
Mean age (range)	44 (27–59)	61 (47–70)	46 (40–63)
Gender
Male	6	3	5
Female	6	0	3
Initial cancer stage
I	0	0	0
II	1	0	0
III	4	0	4
IV	7	3	4
Outcome
Alive	8	0	8
Died	4	3	0

= number of patients; ORN = osteoradionecrosis.