Day C L, Lew R A
J Dermatol Surg Oncol. 1984 Sep;10(9):686-9. doi: 10.1111/j.1524-4725.1984.tb01274.x.
Surgical resectability is the most important prognostic factor for determining the length of survival following distant metastases. Other important factors that derive prognostic significance from their correlation with surgical resectability include (1) number of metastatic sites, (2) performance status, (3) initial site of metastases, (4) interval between initial diagnosis of primary tumor and onset of distant metastases. Factors which have little or no prognostic value include location of the primary tumor, sex, age and histological characteristics of the primary tumor.
手术可切除性是决定远处转移后生存时长的最重要预后因素。其他因与手术可切除性相关而具有预后意义的重要因素包括：（1）转移部位数量；（2）体能状态；（3）转移起始部位；（4）原发性肿瘤初次诊断与远处转移发生之间的间隔时间。几乎没有或不具有预后价值的因素包括原发性肿瘤的位置、性别、年龄以及原发性肿瘤的组织学特征。
