皮肤转移性癌为一重要诊断原发灶的预兆 ,Spencer等 (1987)报道全部癌症病例中皮肤转移占0 .7%～ 9%。它可能是内脏癌的首现体征 ,Brownstein等 (1972 )报道皮肤科就诊的皮肤转移癌中 6 0 %为肺癌被漏诊。皮肤转移癌的机率与原发癌类型有关 ,女性6 0 %起于乳腺、肺占 4 0 % ,口 Metastatic carcinoma of the skin is an important prognostic indicator for primary lesions. Spencer et al. (1987) reported that skin metastases ranged from 0.7% to 9% in all cancer cases. It may be the first manifestation of visceral cancer. Brownstein et al. (1972) reported that 60% of skin metastatic tumors in dermatology were misdiagnosed as lung cancer. The incidence of skin cancer metastasis and the type of primary cancer, 60% of women from the breast, lung accounted for 40% of the mouth