高危肾盂癌患者的简化手术治疗

目的:探讨高危肾盂癌患者的治疗方法。方法:自2009年7月~2012年12月对14例高龄且伴有严重并发症的肾盂癌患者行经腹膜后途径腹腔镜下肾脏+中上段输尿管切除术,术后正规膀胱灌注表柔比星注射液,以预防再发膀胱癌,并定期进行影像学及膀胱镜检查。结果:14例手术全部成功,手术时间63~105min,平均78.3min。术后24~48小时恢复饮食,5~9天出院。术后病理检查2例为鳞状细胞癌,12例为尿路上皮细胞癌;其中2例为浸润性肾盂癌伴肾门处淋巴结转移。术后13例得到随访,1例失访;随访8~36个月,平均21.4个月。1例术后13个月死于肺部转移,2例术后21个月因心肺疾病死亡;2例术后再发膀胱癌,行根治性全膀胱切除。结论:对于高危肾盂癌患者,简化手术,腹腔镜下切除肾脏+中上段输尿管,术后配合正规膀胱灌注化疗是一种有效安全的治疗方法。     

Urothelial cancer of the renal pelvis in percutaneous nephrolithotomy patients

INTRODUCTION: The association between staghorn calculus of the kidney long-standing and urothelial tumors of the renal pelvis is well documented. We describe 3 patients with urothelial cancer in a kidney who underwent percutaneous nephrolithotomy (PCNL). PATIENTS AND METHODS: Retrospective analysis of our series of more than 500 PCNLs revealed 3 patients in whom urothelial cancer of the renal pelvis was diagnosed during or following percutaneous stone removal. Preoperative assessment included IVP, renal sonography and renal scan using DTPA in all 3 patients, and CT in 2 patients. Imaging did not raise the suspicion of a neoplastic lesion. RESULTS: All patients had a long history of urolithiasis and urinary infections. No patient was diagnosed preoperatively. One patient was diagnosed postoperatively, when a CT demonstrated a renal lesion. The second patient underwent simple nephrectomy due to a non-functioning kidney, and the tumor was found on pathological analysis. In the third patient, biopsies were taken from a suspicious-looking tissue in the renal pelvis during the PCNL session. All patients had transitional cell carcinoma: 1 associated with sarcomatoid features and 1 with squamous carcinoma. They all died from metastatic disease 2-19 months after the diagnosis of urothelial cancer. CONCLUSIONS: The preoperative diagnosis of urothelial cancer in patients with staghorn stones is difficult due to the existing stone and inflammation. Since the prognosis of urothelial cancer is extremely poor, biopsies of the renal pelvis, obtained directly through the nephroscope during the PCNL session, may be the only key for early diagnosis and treatment. A high index of suspicion should be raised when patients suffering from infected staghorn calculi are encountered, and such intraoperative biopsies should be considered.     

Pathophysiology of primary renal pelvis outflow stenosis

Ureteral peristalsis originates in the most proximal parts of the caliceal system. It is then conducted to the ureter by way of myogenic excitation conduction. In the pyeloureteral region, however, there seems to be some sort of physiological blockade and modulation of activity. It depends on the level of diuresis whether only a few or all contractions of the renal pelvis reach the ureter. Morphological and functional investigations show that the pathophysiological disturbance in cases of primary stenosis of the pyeloureteral junction seems to be a complete blockade of myogenic excitation conduction. The principle of open surgical corrections (dismembered pyeloureteroplasty) is not only to create a widely open connection between renal pelvis and ureter but also to remove the misfunctioning pyeloureteral segment and to substitute it by a region of improved myogenic excitation conduction.     

Malignant melanoma of the renal pelvis presenting as a primary tumor

We report a case of malignant melanoma of the renal pelvis presenting as a primary tumor and review the relevant literature.     

A clinical study of the renal pelvis and ureteral cancer

During the 13 years from 1976 to 1988, 160 patients with renal pelvic and ureteral cancer were reviewed based on a new general rule for clinical and pathological studies on renal pelvic and ureteral cancer of Japanese Urological Association. There were 71 renal pelvic cancers, 80 ureteral cancers, and 9 cancers in both regions. Patients ranged in age from 35 to 91 years old (average: 63). The involved side was right in 63 and left in 97. The most frequent symptom was hematuria, which was seen in 81.1%. IVP revealed the findings of filling defects, hydronephrosis, and non-visualized kidney in 99.7% of the patients. Total nephroureterectomy with bladder cuff resection was performed in 123 cases, nephroureterectomy in 16 cases, nephrectomy in 5 cases, partial ureterectomy in 10 case, and biopsy in 6 cases. As adjuvant therapies, irradiation was performed in 32 and chemotherapy in 123. Histologically, 156 were with transitional cell carcinoma, one squamous cell carcinoma, one adenocarcinoma and 2 unclear, the over-all survival rate of this study at 1, 3, 5 and 10 years were 86.8%, 73.0%, 65.3% and 45.6%, respectively. No patient with lymph-node metastasis (N+) survived longer than 5 years. All patients with M(1) died within one year. There were no difference of prognosis between renal pelvic cancer and ureteral cancer. Regarding various prognostic factors, our series gave the same results as previous reports. However, it should be stressed that pathological grading was the most important prognostic factor.     

双侧原发性乳腺癌12例临床分析

目的分析双侧原发性乳腺癌(bilateral primary breast cancer,BPBC)的临床特点。方法对收治的12例双侧原发性乳腺癌患者的临床资料及预后进行回顾性分析,研究其特点。结果 12例BPBC患者占同期乳腺癌患者(415例)的2.9%,同时性BPBC3例,占0.7%,异时性BPBC9例,占2.2%。91.7%(11/12)的第一侧乳腺癌肿瘤大小为T2,而第二侧乳腺癌中有2例(16.7%)为T0期癌。第一侧乳腺癌病理类型均为浸润性癌,第二侧乳腺癌中有3例(25.0%)为导管内癌。第一侧原发乳腺癌行乳腺癌根治术或改良根治术,第二侧原发乳腺癌有2例行全乳切除术,1例行保乳手术。12例BPBC均无病生存。结论单侧乳腺癌发生后应积极随访,以早期检出对侧病变。BPBC有较早的临床分期和较高的导管内癌比例,可行保乳手术。     

肾盂鳞状细胞癌临床特点分析

目的 探讨肾盂鳞状细胞癌的诊治特点.方法 回顾性分析1991年10月至2009年5月收治8例肾盂鳞状细胞癌患者资料.临床表现血尿8例,腰痛7例,腹部包块1例.B超检查8例,IVU检查8例,CT检查4例.术前诊断为肿瘤3例,诊断为肾结石5例,结石术中发现肿瘤并经冰冻病理确诊2例.8例患者均经手术治疗,行根治性肾输尿管切除4例、单纯性肾切除3例、姑息性切除术1例.结果 8例病理诊断均为鳞状细胞癌.中分化6例,高分化和低分化各1例;pT1 1例,pT2 1例,pT3 3例,pT4 3例;淋巴结转移2例.获随访7例,失访1例.术后生存时间2～42个月,中位时间6个月,患者均死于肿瘤复发及转移.结论 肾盂鳞状细胞癌恶性程度高,常合并结石,术前诊断困难,确诊时多为中晚期,术后短期内易复发转移,预后极差.

Abstract：

Objective To review the diagnosis and treatment of squamous cell carcinoma of renal pelvis. Methods The clinical data from October 1991 to May 2009 of eight cases of squamous cell carcinoma of renal pelvis were reviewed and analyzed retrospectively. The symptoms of the patients were hematuria (eight cases), pain (seven cases) and abdominal mass (one case). All patients underwent B-ultrasound and IVU examination and four cases underwent CT scan. Three cases were diagnosed as having a tumor before surgery. Five cases were diagnosed as renal calculus, two of the five cases were diagnosed by intraoperative frozen section. Radical nephroureterectomy were performed in four cases, nephrectomy in three cases and palliative resection in one case. Results Histological classification revealed that six cases were moderately differentiated, one case was well differentiated and one case was poorly differentiated. Two cases had stage pT1/pT2 and six cases had stage pT3/pT4. 2 cases had regional lymph nodes metastasis. Seven cases were followed-up. All patients died of tumor recurrence or metastasis. The median tumor specific survive time was six months (range from two months to 42 months). Conclusions Squamous cell carcinoma of renal pelvis is often occurs concurrently with urolithiasis which could lead to difficulty in diagnose before operation. As the most of the patients were diagnosed with advanced stage disease, squamous cell carcinoma of renal pelvis tended to early recurrence and metastasis and the prognosis was very poor.     

Mucinous adenocarcinoma of the renal pelvis associated with transitional cell carcinoma in the renal pelvis and the bladder

We report a case of mucinous adenocarcinoma of the renal pelvis associated with bladder carcinoma in situ (CIS). Transitional cell carcinoma (TCC) of the renal pelvis and CIS were also observed adjacent to the adenocarcinoma. Immunohistochemical assessment of the pelvic adenocarcinoma revealed positive expressions for mucin, epithelial membrane antigen, cytokeratin 7, cytokeratin 19 and carcinoembryonal antigen, but not vimentin or chromogranin. Based on the histopathological examinations, the adenocarcinoma of the renal pelvis in the present case may have a similar biological nature to conventional TCC and probably originated by development of pre-existing TCC of the renal pelvis.     

原发性肺癌患者肾损害的临床分析

目的了解原发性肺癌患者。肾损害发生的原因及其预后。方法收集我院2007年6月至2008年12月出现肾损害的原发性肺癌患者52例,参照Ronco报道的标准判断肺癌患者出现肾损害的原因,以描述性统计学方法加以分析。结果肺癌相关性。肾损害19例,药物性肾损害23例,与肺癌并存的基础病引起的肾损害10例。所有患者中采用化疗23例,放疗17例,手术治疗3例。多数患者肾损害均有不同程度加重。肺癌相关性肾损害患者16例死亡,药物性肾损害患者22例死亡,与肺癌并存的基础病引起的肾损害9例死亡。结论原发性肺癌患者发生肾损害的原因依次为药物性肾损害、肺癌相关性肾损害和与肺癌并存的基础病引起的肾损害。其预后主要取决于肿瘤本身。