小肝癌切缘复发预防及临床处理方法的探讨

背景与目的随着医疗诊断技术的提高,越来越多的小肝癌被发现,目前治疗小肝癌首选的方法仍是手术切除,但其术后复发率高达60%以上。本研究中我们对临床小肝癌进行回顾对照分析,拟探讨降低小肝癌手术切缘复发率的方法。方法回顾性分析广东省开平市中心医院和中山大学肿瘤医院在1991年1月～2003年5月间收治的283例小肝癌患者的临床病理资料。由于85%以上的肝癌患者合并不同程度肝硬化和肝储备功能不良,故以非规则性肝切除术为主。其中作肿瘤剔出术加残端切缘注射无水乙醇或无水乙醇明胶海绵创面填塞术140例(研究组);143例仅作普通常规处理(对照组)。比较两组患者的年龄、性别、肿瘤部位、肿瘤分期、Child-Pugh分期无统计学意义。结果研究组和对照组切缘1年复发率分别为21.4%和4.4%,有显著性差异(P<0.05);肝内转移/再发率分别为26.1%和24.5%,无统计学意义(P>0.05)。研究组和对照组5年总生存率分别为57.3%、52.8%(P=0.48),5年无瘤生存率分别为35.2%、36.9%(P=0.51)。两组患者术后一周内体温均在39℃以下;均无明显白细胞升高、胆漏及出血出现。结论不规则肝切除术后残端用无水乙醇明胶海绵填塞,或在残端处注射无水乙醇,对减少术后残端局部复发有一定效果,但对术后转移复发再发无作用,此法简单经济实用,便于推广应用,副作用少。     

膝关节周围骨巨细胞瘤的影像学特征及其与预后的关系

目的探讨膝关节周围骨巨细胞瘤的影像学特征及其与预后的关系。方法 2010年9月到2013年12月诊治的骨巨细胞瘤患者230例,都给予了病理与MRI诊断,手术方式均为肿瘤刮除术,观察预后情况。结果在MRI表现中,230例患者病变中心性生长129例,偏心性101例;T1WI低或呈中等信号,T2WI呈等或稍高信号;信号环完整180例,无水肿80例。所有患者均完成手术,术后3个月的复发率为9.6%,总体优良率为90.9%。相关性分析显示,MRI影像学中的T2WI信号特征、软组织肿块形成、信号环完整性、病变生长特征与肿瘤复发和总体优良率有关(P<0.05)。结论膝关节周围骨巨细胞瘤患者可通过MRI诊断获得早期诊断,肿瘤刮除术的术后功能恢复比较好,复发率比较低,MRI的相关影像学特征与预后有明显相关性。     

The current status of the treatment of ductal carcinoma in situ of japanese women, especially breast conserving operation in relation to the surgical margin and short term outcome

The indications for a breast conserving operation in the treatment of ductal carcinoma in situ (DCIS) of the breast with clinical manifestations other than mammoqraphically detected calcifications are controversial. A positive surgical margin has been suggested to be an important risk factor for local recurrence after a breast conserving operation. We attempted to clarify the frequency of positive surgical margins when performing breast conserving operations for DCIS, identify the risk factors for positive margins, and also to evaluate the short-term outcome. Between 1988 and 1992, 5571 breast cancer cases were surgically treated at the 7 institutions of the authors, of which 375 cases (6.7%) were histologically diagnosed as DCIS. The most frequent clinical manifestation was a tumor in 64% of the cases, followed by nipple discharge in 23% and calcification on mammography in 12%. Of these 375 cases, 242 cases were analyzed. Sixty-six cases had undergone a breast conserving operation. Axillary dissection was not performed in 29 cases. The median follow up period was 61.4 months. The initial surgical margin was positive in 29% of the cases. The most significant factor for a positive surgical margin was young age followed by large tumor size. There were four cases with local recurrence. Three recurrences developed in the same quadrant. All four cases remain alive after total mastectomy. There were no cases with distant metastasis or axillary recurrence. Breast conserving operation for DCIS have shown satisfactory results to date, and when clear surgical margins can be obtained, this procedure, without axillary dissection, should be considered even for patients with clinical manifestations other than mammographically detected calcifications.     

Comparison of anatomic and non-anatomic resections for very early-stage hepatocellular carcinoma: The importance of surgical resection margin width in non-anatomic resection

BackgroundThe superiority of anatomic resection (AR) over non-anatomic resection (NAR) for very early-stage hepatocellular carcinoma (HCC) has remained a topic of debate. Thus, this study aimed to compare the prognosis after AR and NAR for single HCC less than 2 cm in diameter.MethodsConsecutive patients with single HCC of diameter less than 2 cm who underwent curative hepatectomy between 1997 and 2017 were included in this retrospective study.ResultsIn total, 159 patients were included in this study. Of these, 52 patients underwent AR (AR group) and 107 patients underwent NAR (NAR group). No significant differences were noted in recurrence-free survival (RFS) and overall survival (OS) between the AR and NAR groups (P = 0.236 and P = 0.363, respectively). Multivariate analysis revealed that low preoperative platelet count and presence of satellite nodules were independent prognostic factors of RFS and OS. Wide surgical resection margin did not affect RFS (P = 0.692) in the AR group; however, in the NAR group, RFS was found to be higher with surgical resection margin widths ≥1 cm than with surgical resection margin widths <1 cm (P = 0.038).ConclusionsPrognosis was comparable between the NAR and AR groups for very early-stage HCC with well-preserved liver function. For better oncologic outcomes, surgeons should endeavor in keeping the surgical resection margin widths during NAR ≥1 cm.