Table 3. Patterns of treatment failure in nasopharyngeal carcinoma patients.

Sites	Number of patients (n = 31)
Local relapse only	7
Regional relapse only	8
Local and regional failure	1
Regional and distant failure	2
Distant failure only	13
Lung metastasis only	3
Bone metastasis only	2
Liver metastasis only	2
Lung, liver, bone and other	6