Background: Urinary tract injuries occur in 3-10% of abdominal trauma, kidneys being the most commonly injured. Contrast-enhanced CT is the imaging technique of choice for renal trauma, since it can quickly and accurately demonstrate not only renal injuries, and also associated damage to other organs. CT can help detect active hemorrhage and urine leakage and is the most accurate screening test for high-grade injuries and is of great help in guiding transcatheter embolization and delineating preexisting disease entities. Aim of the work: To demonstrate different traumatic lesions of the kidneys using multi-detector CT, and its use in staging and management of lesions. Methods: Study was carried out on 41 patients with abdominal trauma and suspected renal injury. All patients were subjected to contrast-enhanced multiphasic renal CT study in correlation with surgical and conventional angiography data when available. Results: All patients were classified after the American Association for the Surgery of Trauma grading system. Grade I injury was diagnosed in 2.4% of patients, grade II in 7.3%, grade III in 29.3%, grade IV in 53.7% and grade V in 7.3%. 80.5% of patients were managed conservatively, 12.2% of patients underwent total nephrectomy and 7.3% of patients died before management. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Please cite this article in press as: Shaaban MS et al. Multi-detector CT assessment of traumatic renal lesions, Alex J Med (2015), http://dx.

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All rights reserved. AbstractSex determination from skeletons is an important research subject in forensic medicine. This study aimed to evaluate the sexual dimorphism in the Egyptian skulls based on foramen magnum and some cranial measurements.Methodology: The present study was performed on 100 adult Egyptian patients of both sexes. Multi-Slice Computerized Tomography (MSCT) scan were obtained and reconstruction of 3D models for the cranium was performed. Various parameters related to the foramen magnum, the right condyle and the left condyle were measured on virtual skulls of adult patients. Results: The mean length, width and area of foramen magnum were significantly higher in males(35.3 ± 1.9mm, 30.0 ± 1.9mm and 833.50±72.52mm 2 respectively) than in females(32.8 ± 2.5mm, 27.1 ± 2.4 mm and 699.90±92.09mm 2 respectively). The mean lengths of the maximum bicondylar distance, minimum intercondylar distance and maximum medial intercondylar distance were significantly longer in males(48.8 ± 2.3 , 17.2 ± 1.7 and 25.1 ± 2.4mm respectively) than in females (46.1 ± 2.2, 16.2 ± 1.8 and 22.7 ± 1.7mm respectively ). A significant difference between males and females was elicited regarding the length (24.8± 1.7 and22.7±2.2mm respectively) and the width (14.4±1.3 and 13.5±1.3mm respectively) of the right condyle. The equation which determines sex with high accuracy was the one made from the length of the foramen magnum, length of the right condyle and length of the left condyle, the accuracy reached 87%. Conclusion: It can be concluded that measurements of the foramen magnum and the condyles obtained using 3D CT and the equations acquired from them are reliable tools in sex determination.

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