1977年至 1 993年收治 35岁以下女性乳腺恶性肿瘤 69例 ,年龄最小 1 8岁 ,初潮年龄最小 1 2岁 ,初潮年龄≤ 1 5岁 45例 ,占 65 2 % ;病程最短 2天 ,最长 3年 ,中位数 6 33月。 8例因肿块伴痛就诊 ,其余均以无痛性肿块就诊。非特殊型乳腺癌 41例 ,特殊型乳腺癌 2 1例 ,罕见型 7 From 1977 to 1993, 69 cases of malignant breast tumors were diagnosed in women under the age of 35. The youngest patients were 18 years of age. The age of menarche was at least 12 years. The menarche age was ≤ 15 years and 45 patients accounted for 65 2%. The shortest course of disease was 2 days. For 3 years, the median is 6 to 33 months. Eight patients presented with pain due to tumors, and the others all presented as painless masses. Non-specific breast cancer in 41 cases, special breast cancer in 21 cases, rare type 7