Department of Medical Oncology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, 600020, India.
Surgical Oncology, Cancer Institute (WIA), Adyar, Chennai, Tamil Nadu, India.
Med Oncol. 2019 Feb 6;36(3):28. doi: 10.1007/s12032-019-1252-6.
Germ cell tumors (GCTs) are one of the most common tumors in adolescents and young adults. There is paucity of data on GCT from low-middle-income countries (LMIC). The present study was conducted to assess the demographic features, clinical manifestations, pathology, and outcomes of GCT patients treated at our center. Patients with testicular GCT above the age of 18 years, treated at our center from 2001 to 2015 were included in the study. Data were extracted retrospectively from the case records. Event-free survival (EFS) and overall survival (OS) were calculated using the Kaplan-Meier method and the variables were compared using the log-rank test. The study included 421 patients among whom 128 (30%) had a histological diagnosis of seminoma and 293 (70%) had non-seminomatous germ cell tumor (NSGCT). Metastatic disease at presentation was observed in 83/128 (65%) with seminoma and 254/293 (87%) with NSGCT. According to the International Germ Cell Cancer Collaborative Group (IGCCCG) risk stratification for metastatic disease, good- and intermediate-risk seminoma were observed in 55/83 (66%) and 28/83 (34%) patients, respectively, and good-, intermediate-, and poor-risk NSGCT were observed in 82/254 (32%), 76/254 (30%), and 96/254 (38%) patients, respectively. The median follow-up was 32.3 months (range 0.03-200 months). The 3-year OS for the entire cohort was 80.3%. The 3-year OS for seminoma was 91.4%, and for NSGCT was 75.3%. Factors significantly associated with inferior EFS and OS on multivariate analysis included poor performance status, scrotal orchidectomy, carboplatin-based regimen, NSGCT histology, and treatment default. Patients with testicular GCT in India present in an advanced stage and higher IGCCCG risk compared to Western data. Factors unique to LMIC like treatment default, bulky disease, dose compromise, and scrotal orchidectomy have a negative impact on the outcome.
生殖细胞肿瘤(GCTs)是青少年和年轻人中最常见的肿瘤之一。来自中低收入国家(LMIC)的 GCT 数据很少。本研究旨在评估我们中心治疗的 GCT 患者的人口统计学特征、临床表现、病理学和结果。纳入 2001 年至 2015 年在我们中心治疗的年龄大于 18 岁的睾丸 GCT 患者。从病历中回顾性提取数据。使用 Kaplan-Meier 方法计算无事件生存(EFS)和总生存(OS),并使用对数秩检验比较变量。该研究共纳入 421 例患者,其中 128 例(30%)组织学诊断为精原细胞瘤,293 例(70%)为非精原细胞瘤生殖细胞肿瘤(NSGCT)。128 例精原细胞瘤中有 83 例(65%)在就诊时存在转移性疾病,293 例 NSGCT 中有 254 例(87%)存在转移性疾病。根据国际生殖细胞癌协作组(IGCCCG)转移性疾病的风险分层,55 例(66%)和 28 例(34%)精原细胞瘤患者分别为良好和中等风险,82 例(32%)、76 例(30%)和 96 例(38%)NSGCT 患者分别为良好、中等和差风险。中位随访时间为 32.3 个月(范围 0.03-200 个月)。整个队列的 3 年 OS 为 80.3%。精原细胞瘤的 3 年 OS 为 91.4%,NSGCT 的 3 年 OS 为 75.3%。多变量分析显示,预后不良、阴囊睾丸切除术、卡铂为基础的方案、NSGCT 组织学和治疗失败是 EFS 和 OS 较差的显著相关因素。与西方数据相比,印度睾丸 GCT 患者的就诊时处于晚期且 IGCCCG 风险更高。像治疗失败、大肿块疾病、剂量妥协和阴囊睾丸切除术等 LMIC 特有的因素对结果有负面影响。