Topography of Prostate Cancer Recurrence After Radiation Therapy: A Detailed Mapping Study of Salvage Radical Prostatectomy Specimens

In men who do not respond to initial radiation therapy, accurate knowledge of the site of cancer recurrence or persistence is necessary to understand treatment failure. We evaluated the pathologic characteristics of recurrent/persistent prostate cancer with tumor maps from the whole-mount slides of salvage radical prostatectomies performed between 2000 and 2014. Of 216 consecutive patients, detailed tumor maps were available for 77. Sixty-nine patients (90%) were found to have tumor in the apex, of which 46% occurred in the most apical 3 mm. Fifty-three patients (69%) had tumors at a distance of ≤5 mm from the urethra. Five patients had tumor directly involving the urethra, all of whom had urethral invasion at the apex. Seminal vesicle involvement was seen in 32 patients (42%), two of whom had tumor only in the seminal vesicles. Sixty-two patients (81%) had tumors in the distal apex, periurethral area, or seminal vesicles, that is, areas that are not routinely biopsied. Targeting these areas could improve the accuracy of biopsy when cancer recurrence is suspected.

Impact of Early Salvage Radiation Therapy in Patients with Persistently Elevated or Rising Prostate-specific Antigen After Radical Prostatectomy

Background

Salvage radiation therapy (SRT) is a recommended treatment option for biochemical recurrence after radical prostatectomy (RP). However, its effectiveness may be limited to specific categories of patients.

Review of the comparative effectiveness of radical prostatectomy,radiation therapy,or expectant management of localized prostate cancer in registry data

Summary

Evidence regarding the effectiveness of treatment for prostate cancer is primarily based on randomized controlled trials. Long-term outcomes are generally difficult to evaluate within experimental studies and may benefit from large pools of observational data. We conducted a systematic review of administrative and registry studies to evaluate the comparative effectiveness of treatment for clinically localized prostate cancer on overall and prostate-cancer specific mortality.

VCE取材Bethesda 2001报告在宫颈癌筛查中的意义

目的：探讨VCE取材Bethesda 2001报告系统在宫颈癌筛查中的意义。方法：采用VCE取材Bethesda2001报告系统对3 056例健康体检女性进行阴道细胞学检查,并对不明确意义的不典型鳞状上皮细胞（ASC-US）以上病变者经阴道镜取材进行宫颈组织病理学诊断。结果：阴道细胞学检查(VCE取材Bethesda 2001报告系统)检出宫颈异常鳞状上皮细胞66例,阳性率2.15%。其中不明确意义的不典型鳞状上皮细胞（ASC-US）17例（25.76％）,不除外高度病变的不典型鳞状上皮细胞（ASC-H）4例,（6.06％）,低度鳞状上皮内病变（LSIL）28例（42.42％）,高度鳞状上皮内病变(HSIL)14例（21.21％）,宫颈鳞癌（SCC）3例（4.55％）。66例细胞学阳性诊断病例经宫颈活检组织病理学诊断CIN I级以上病变60例（90.91％）,其中CIN Ⅰ级35例（53.03％）,CIN Ⅱ级12例（18.18％）,CIN Ⅲ级7例（10.61％）,宫颈鳞癌6例（9.09％）。结论：VCE取材Bethesda2001报告系统取材方便、报告准确,阴道细胞学检查阳性诊断与病理诊断符合率高达90.91％,VCE取材Bethesda2001报告系统在宫颈癌筛查中具有重要意义。     

Socioeconomic patterning in the incidence and survival of teenage and young adult men aged between 15 and 24 years diagnosed with non–seminoma testicular cancer in northern england

PurposePrevious research from developed countries has shown a marked increase in the incidence of testicular cancer in the past 50 years. This has also been demonstrated in northern England, along with improving 5-year survival. The present study aims to determine if socioeconomic factors may play a role in both etiology and survival from non–seminoma testicular cancer.Materials and methodsWe extracted all 214 cases of non–seminoma testicular cancer diagnosed in teenage and young adult men aged between 15 and 24 years during 1968 to 2006 from the Northern Region Young Persons’ Malignant Disease Registry, which is a population-based specialist regional registry. Negative binomial regression was used to examine the relationship between incidence and both the Townsend deprivation score (and component variables) and small-area population density. Cox regression was used to analyze the relationship between survival and both deprivation and population density.ResultsDecreased incidence was associated with living in areas of higher household overcrowding for young adults aged between 20 and 24 years (relative risk per 1% increase in household overcrowding = 0.79; 95% CI: 0.66–0.94) but no association was detected for young people aged between 15 and 19 years. Community-level household unemployment was associated with worse survival (hazard ratio per 1% increase in household unemployment = 1.04; 95% CI: 1.00–1.08).ConclusionsThis study has shown that increased risk of non–seminoma testicular cancer in teenage and young adult men may be associated with some aspect of more advantaged living. In contrast, greater deprivation is linked with worse survival prospects. The study was ecological by design and so these area-based results may not necessarily apply to individuals.     

Battling resistance mechanisms in antihormonal prostate cancer treatment: Novel agents and combinations

Prostate cancer (PCa) is a hormone-sensitive disease. Androgen deprivation therapy lowers serum testosterone levels (castration) or blocks the androgen receptor (AR) ligand-binding domain. Especially in metastatic disease, hormonal therapy has been able to delay disease progression, reduce symptoms, and improve overall survival. Despite subsequent disease progression and development of castration resistance, PCa remains AR driven. Secondary hormonal treatments such as abiraterone acetate or enzalutamide have demonstrated increased overall survival. However, new resistance mechanisms to these agents have been identified, and systemic chemotherapy is still needed especially in fast-progressing castration-resistant PCa. Several promising androgen synthesis inhibitors (orteronel and galeterone), AR inhibitors (ARN-509, EPI-001, AZD3514, and ODM-201), and heat shock protein modulators (AT11387, 17-DMAG, STA-9090, and OGX-427) are currently under investigation. The wide variety in upcoming systemic agents underlines the molecular heterogeneity of castration-resistant PCa. This article reviews antihormonal therapy in PCa and resistance mechanisms and focuses on novel and upcoming agents currently in clinical testing.     

甲状旁腺病变的超声诊断及多种影像学对比分析

评价超声在甲状旁腺疾病诊断中的价值及多种影像学检查技术在甲状旁腺疾病诊断中的对比分析。方法回顾性分析于我院行甲状旁腺手术切除患者94例,共104个病灶。观察病变的声像图特征,对比分析多种影像学检查结果。结果不同甲状旁腺病变的超声声像图特征具有差异性,超声诊断甲状旁腺病变的敏感度为82.69%(86/104),对于直径1cm的病变,超声诊断的敏感度明显高于其他检查单独使用,而对于合并甲状腺结节的病变超声的敏感度低于核素显像及超声联合核素检查(P均0.05)。结论超声可作为甲状旁腺病变诊断的首选检查方法,联合运用各种影像学检查,可更好地进行病变的术前定位及诊断。