Table II.

Results to treatment

Patient no	Number of PDT sessions	Response to treatment	Duration of response
1	9	2 complete clinical response (Fig 1, A and B) 1 complete clinical response followed by tumor recurrence 2 partial clinical response	12 and a half months
2	5	Complete clinical and histological response	16 and a half months ongoing response
3	6	Complete clinical response with histological evidence of persistent disease (Fig 2, A and B)	16 months ongoing clinical response
4	5	Complete clinical and histological response (Fig 4, A and B)	3 and a half months

PDT, Photodynamic therapy.