Clinical versus Pathologic staging of Renal Tumors: Role of Multi-Detector CT Urography.

Introduction: Our ability to diagnose renal cell carcinoma (RCC) has increased in the past 30 years as a result of the extensive application of imaging techniques, such as ultrasonography, computed tomography, and magnetic resonance imaging. Multi-detector computed tomography (MDCT) remains the most appropriate imaging modality for the diagnosis and staging of RCC. The aim of this work was to compare the findings of MDCT with surgical pathology to determine the accuracy of delineating tumor size, localization, organ confinement, lymph node metastases, and the extent of tumor thrombus in the renal vein and inferior vena cava.

Single-step renal dilatation in percutaneous nephrolithotomy: A prospective randomised study.

Objective: To perform an economical single-step renal dilatation (RD) during percutaneous nephrolithotomy (PCNL), using directly a 30-F Amplatz dilator over the central Alken dilator, in a trial to reduce the operative duration and radiation exposure during RD while avoiding an exchange of dilators that might increase the risk of blood loss.

Patients And Methods: In a prospective randomised study including 49 patients divided into two groups, the first had RD before PCNL using the standard metallic telescopic dilators (Alken), and the second had RD using the 30-F Amplatz dilator over the central Alken dilator. The operative duration, with X-ray exposure, was calculated.

Molecular markers and bladder carcinoma: Schistosomal and non-schistosomal.

Objectives: Detection of telomeric repeat amplification protocol (TRAP) activity, the human telomerase reverse transcriptase (hTERT), tumor suppressor gene (p53) and proliferating marker (MIB-1) in bladder specimens.

Design And Methods: Specimens were obtained from 85 patients and 10 controls. TRAP technique and immunohistochemistry (IHC) method were performed.

Effectiveness of a single immediate mitomycin C instillation in patients with low risk superficial bladder cancer: short and long-term follow-up.

Purpose: We analyzed the impact of a single Mitomycin C instillation in patients with low risk superficial bladder cancer with short and long-term follow-up.

Patients And Methods: This study was conducted on 63 patients with low risk superficial bladder transitional cell carcinoma (TCC), admitted to the Urology Department, Theodor Bilharz Research Institute (TBRI) during the period from January 2002 to August 2005. All patients had a 2 cm.