الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Multi-phasic contrast enhanced multi detector computed tomography (MDCT) is the golden standard for imaging and characterization of parenchymal renal masses. Therefore, it has the potential to become a single minimally invasive imaging modality used for comprehensive evaluation and surgical planning for patients with Wilms’ tumor.
The aim of this study is to determine the role of Multi Detector computed Tomography (MDCT) in pre-operative assessment of Wilms’ tumor.
Twenty pateints 11 males and 9 females ranged in ages from 1 to 10 years were enrolled in this prospective study. All patients were referred for evaluation by MDCT Multiphasic kidney technique for characterization of Wilms’ tumor. These data was collected in 21 months duration starting from May 2015.
All patients were subjected to:
1. Full history taking.
2. Thorough clinical examination.
3. Laboratory investigations.
4. Ultrasound evaluation.
5. MDCT.
All masses were pathologically proven as Wilms’ tumor and matched with our CT. Our results showed that 11 had Wilms’ tumor on the right side, 7 on the left side and two were bilateral.
The result of this thesis estimated that 59.1% of tumors >7cm in size, 27.3% were 4-7 cm and 13.6% were ≤4cm, 59.1% of tumors <50% exophytic and 40.9% were ≥ 50% exophytic, 95.5% of tumors crosses axial renal midline, 4.5%were entirely above or below polar lines, 5 patients showed venous thrombosis (25%); 3 of them had thrombosis within the renal vein and the other 2 cases of thrombosis envolved the infradiaphragmatic IVC, 4 patients had lymph node envolvement (20%), 3 tumors (13.6%) with ruptured capsule, two patients with distant metastases (10%) with metastatic deposits within the lung. Regarding tumor staging; 7/20 patients staged as stage I, 5/20 were stage II, 4/20 stage III, 2/20 staged IV and 2/20 patients were stage V.
Multidetector CT has dramatically refined the diagnostic evaluation of Wilms’ tumor and its character with a safe reliable imaging modality and decrease the surgical complication as it has high accuracy in detecting the perinephric extension, also characterize size, site and vascular invasion as well.