REVIEW
CONGRESSES AND CONFERENCES
CLINICAL CASE
LECTURE
Radiotherapy alone ranks below radical cystectomy in results; but the latter of multimodality organ-preserving therapy are comparable with those of radical cystectomy in patients with the same stage of the disease and of the same age. The development of current radiotherapy technologies, the advent of new effective chemotherapy regimens, and the integration of these methods with organ-preserving surgery offer hope to longer survival and urinary bladder preservation in patients with invasive bladder cancer.
DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. RENAL CANCER
Aim. To study chromosomal abnormalities in bilateral renal cell carcinoma (RCC).
Materials and methods. Paraffin-embedded specimens from 8 patients with bilateral RCC were examined by comparative genomic hybridization.
Results. 1 to 6 chromosomal aberrations were found in each sample. The same chromosomal aberrations in both tumors in 7 (87.5%) cases chromosomal changes were different in one (12.5%) case.
Conclusion. Further genetic studies of bilateral RCC may give a better insight into the biology, diagnosis, and treatment of bilateral RCC.
Sixty hundred and twenty-six case histories of patients with renal-cell carcinoma, who underwent nephrectomy at the Department of Oncourology, P.A. Herzen Moscow Research Oncological Institute, in November 1992 to November 2005, have been restrospectively analyzed.
Results. Metastatic lymph nodal lesion was identified in 23 (6.49%) patients of 354 patients with renal-cell carcinoma without distant metastasis, who had undergone regional lymphadenectomy. Metastatic regional lymph nodal lesions were found in 9 (2.54%) patients on preoperative examination (as verified by ultrasound study and computed tomography). Metastatic lymph nodal lesion was intraoperatively suspected in 3 (0.85%) patients. This was revealed in 11 (3.11%) patients after planned histological study.
Conclusion. The frequency of metastatic regional lymph nodal lesions is 3.11% in patients with early renal-cell carcinoma with unaltered regional lymph nodes, as shown by preoperative and operative examinations. In renal-cell carcinoma, the probability of metastasis into the regional lymph nodes increases in patients with a more 5-cm renal tumor, in those with non-clear or mixed carcinoma, and or those with a locally advanced tumorous process.
DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. URINARY BLADDER CANCER
Notwithstanding the fact that advances have been made in various urine derivations, the assessment of life quality in patients who have undergone this type of surgical treatment is still not only a medical problem, but, to a greater extent, a social one. Eighty-seven patients who had undergone radical cystectomy and urine derivation for invasive bladder cancer were examined. According to the type of urine derivation, the patients were divided into groups. Then early and late complications, survival rates, and quality of life were estimated. The latter was assessed by three components: physical, psychological, and urological health. Emphasis is laid on physical health component in assessing the quality of life. The special questionnaire applied to the assessment of life quality in patients undergoing urine derivation may be useful for this purpose in those after other urological operations.
DIAGNOSIS AND TREATMENT OF URINARY SYSTEM TUMORS. PROSTATE CANCER
Materials and Methods. The results of examination and treatment of 163 males who had undergone radical retropubic prostatectomy (RRP) with bilateral pelvic lymphadenectomy for clinically locally advanced prostate cancer (PC) (T1aN0M0-to-cT2bN0M0) were studied. The patients’ mean age was 63.5 years and ranged from 41 to 74 years. After RRP, the duration of a follow-up averaged 46.6±2.7 months and ranged from 24 to 81 months. Digital rectal study, determination of serum prostate-specific antigen (PSA) and its density, transrectal multifocal prostate biopsy under ultrasound guidance, and, if required (PSA more than 20 ng/ml or a total of above 7 Glisson scores), computed tomography and scintigraphy of skeletal bones were performed in all the patients. The postoperative examination involved postmortem examination and measurement of serum PSA levels over time.
Results. The study has revealed that there is an clear tendency for an increase in the frequency of other poor signs with elevated preoperative PSA levels.
Conclusion. The findings have indicated that there is a direct and statistically significant correlation between the preoperative values of total PSA, its density, and the possible outcomes of RRP.
Materials and Methods. The results of transrectal multifocal prostatic rebiopsy made under ultrasound guidance at the Clinic of Urology, Military Medical Academy, in 1998 to 2004 were studied.
A total of 2352 males were examined; of them, 125 patients underwent rebiopsy. The patients’ age was 54 to 87 years (mean age 60.3 years). The patients were divided into 4 age groups: 1) 51-60 years [11% (14/125)]; 2) 61-70 years [47% (59/125)]; 3) 71-80 years [35% (44/125)]; 4) > 81 years [0.3% (4/125)]. There were 6 to 14 biopsy probes.
Results. The study showed that rebiopsy of the prostate identified its cancer in 23% of the patients having a negative primary histological result. It was also established that the patients in whom primary biopsy revealed prostatic intraepithelial neoplasia (PIN) and/or an increase in PSA of > 0.75 ng/ml per year and its density > 0.15 ng/ml/cm3 should be referred to a repeated histological study within 6 to 12 months. When these rules were observed, there were the most favorable prognostic signs: no capsular invasion, lower Glisson scores, and none metastasis.
Conclusion. The study has provided the following indications for rebiopsy:
— a continually elevating PSA level or its preservation after primary negative biopsy;
— abnormal findings on rectal examination and transrectal ultrasound study;
— high-grade PIN in the prior biopsy specimen.
DIAGNOSIS AND TREATMENT OF URINARY TRACT TUMORS. CANCER OF THE URETHRA AND PENIS
Clinical course of primary urethral cancer is characterized in detail in 31 patients. Specific features in the disease course with consideration for tumor stage and patient's sex are analyzed. Urethral cancer is diagnosed only at stages III—IV in the majority (74.2%) of cases. The disease is more incident in women aged over 60 years with a history of chronic cystitis, urethritis, and urethral leukoplakia. The main clinical manifestations of primary urethral cancer are bloody discharge from the urethra, painful difficult urination, and palpated tumor. The symptoms persist for 12.06 months on average. The treatment efficiency depends on the stage of the process: complete effect is attained in 100% patients with stage I, in 75% with stage II, in 54.55% with stage III, and in 41.67% with stage IV. Local relapses are significantly more incident in men (50% vs. only 5.26% in women), 5-year uneventful survival is significantly better in women: 59.6%, vs. 31.2% in men. The median total survival of patients with primary urethral cancer is 61.3 months, total 5-year survival 53±11.6%. Evaluation of the results of different treatments for primary urethral cancer demonstrated the advantages of surgical and combined treatment vs. radiotherapy as a monotreatment. Radiotherapy should be carried out only when surgical removal of the tumor is impossible.
ABSTRACTS
ISSN 1996-1812 (Online)