Fig. 4.
Case 7. (a) The appearance of the face with melanoma prior to BNCT (cT1aN0M0). The lesion contained a mixed black/brown macula. (b) The appearance of the face 1 year after BNCT. Black macula in the lesion had completely disappeared; however, brown spots persisted for a long time. This brown macula was evident for 6 years. (c) The appearance of the face 7 years after BNCT. The patient exhibited tumor recurrence after a long-term (6-year) persistence of brown macula.