在1,319例临床第Ⅰ期皮肤恶性黑色素瘤中,380例施行了病灶广泛切除和预防性淋巴结大块切除术(以下简称 PLND),其中18例(5%)的淋巴结经病理证实有转移,后者应称为临床第Ⅰ期/病理第Ⅱ期肿瘤,其总五年生存率(61%)比临床上有明显淋巴结转移的病例要高出一倍,因为临床第Ⅱ期/病理第Ⅱ期病灶施行淋巴结大块切除术后,五年生存率 Among 1,319 cases of stage I cutaneous malignant melanoma, 380 patients underwent extensive resection of the lesion and prophylactic lymphadenectomy (hereinafter referred to as PLND), of which 18 cases (5%) of lymph nodes were confirmed by pathological metastasis. Patients should be referred to as clinical phase I/pathological stage II tumors, and their total five-year survival rate (61%) is twice as high as clinically significant lymph node metastasis because of clinical stage II/pathological stage II. Five-year survival after focal lymph node resection