Introduction The effects of squamous and/or glandular differentiation in urothelial carcinoma of bladder on recurrence, progression and survival rate were evaluated in this study. Patients and methods Between 1998 and 2003, a total of 223 patients who had been treated with transurethral resection for bladder cancers were evaluated. The patients were divided into two groups as; Group I: tumor patients with squamous and/or glandular differentiation, Group II: patients without these findings. Results Histologically 189 (84.7%) were conventional urothelial carcinoma and 34 (15.2%) were tumors with squamous and/or glandular differentiation. The mean age of the patients was 64.4 ± 12.7 (range 36-81) years. Survival rates within a period of 46.23 ± 14.8 (12-67) months were 76.47% for Group I and 89.94% for Group II (P = 0.027). The stage distribution as pTa, pT1, and ‡pT2 was 2 (5.9%), 18 (52.9%), and 14 (41.2%) in Group I and 101 (53.4%), 51 (27%) and 37 (19.6%) in group II, respectively (P = 0.001). There was a statistically significant tendency towards higher stage at presentation in Group I and the grade distribution was significantly higher in Group I than Group II (P < 0.001). Conclusion High recurrence rates and poor prognosis of these patients should be kept in mind in the follow-up period. In this respect, these patients should be followed up closely.

Background Active surveillance (AS) is one of the treatment alternatives in low‐risk prostate cancer (PCa). The pathological upgrading after radical prostatectomy (RP) were investigated in patients who were eligible for AS in the present study. Methods Between August 2006 and July 2017, 627 patients underwent RP in our institution. One hundred and thirty‐six patients who were eligible for AS at the time of RP were included in this study. The previously defined AS criteria Gleason 3 + 3=6 adenocarcinoma at maximum two biopsy cores, prostate‐specific antigen (PSA) < 10 ng/mL and clinical T stage ≤ 2a were used in the study. The demographics, clinical, and histopathological outcomes were retrospectively compared between two groups, which were divided in accordance with the upgrading status at final pathology as Group 1 (n = 67, upgrading) and Group 2 (n = 69, nonupgrading). Results Gleason upgrading (GU) was found in 67 (49.3%) patients, and 17 patients (12.5%) were upstaged to pT3a. The upgrading to Gleason 3 + 4 was reported in 38.7% of patients, however, 7.4%, and 3.7% of the patients were upgraded to Gleason 4 + 3, and Gleason 4 + 4, respectively. The 10.3% of the patients had extraprostatic involvement, and the rate (19.4% vs 1.4%, P = .002) was significantly higher in Group 1. PSA density (P = .001), tumor size (P < .001), tumor percentage (P < .001), apical involvement (P = .013), and perineural invasion (P < .001) in RP specimen were higher in Group 1. Multivariate analysis showed that perineural invasion (OR = 4.26; 95%CI: 1.76‐10.33; P = .001) and pathologic T stage (OR = 5.45; 95%CI: 1.08‐27.4; P = .04) were independently associated with GU. Conclusions Since 12.5% of the patients upstaged to pT3a disease, and there is a possible risk of Gleason 4 pattern, upgrading of the tumor should carefully be kept in mind before offering AS to low‐risk patients with PCa.

Early detection of bladder cancer is particularly important since it dramatically affects the survival rates. However, neither urinary cytology nor tumor markers that are currently used are sensitive enough for the early detection of bladder cancer or recurrent disease. The ras genes are frequently mutated in cancer. In this study, we investigated the diagnostic potential of ras mutation analysis in urinary sediments of patients with bladder cancer using a singlestrand conformation polymorphism analysis and polymerase chain reaction. Mutation in codon 12 of the Hras gene was observed in 39% of the patients. Our results indicate that this approach may significantly improve diagnostic sensitivity in detecting bladder tumors.

E-CD expression was decreased in pathologic specimens of bladder tumor patients with muscularis mucosae involvement and this condition correlated well with tumor recurrence.

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