[Late recurrence of malignant tumours 20 years after diagnosis and treatment].

Late recurrence of malignant tumours is very rare phenomenon. Seven cases of late recurrent malignancy (melanoma--2 cases, clear cell renal cancer, stomach sarcoma, breast cancer, basal cell carcinoma, ovarian cancer) after 20-32 (average 22.3) years from diagnosis and treatment were described. The histopathological examination results of primary and recurrent tumours were identical. Six patients died at the age from 40 to 89 (mean 66.8) years. The survival of patients after recurrence was from 4 to 11 (mean 7.3) months.