Role of MDCT colonography and conventional colonoscopy in evaluation of colo-rectal neoplasms

The study was conducted to evaluate the role of MDCT colonography in diagnosis of cob-rectal neoplasms compared to conventional colonoscopy. Fifty patients were included in the present study 28 males and 22 females with age ranged from 2 1-75 years old. Patients were presented with variable-size large bowel masses examined by MDCT colonography and conventional colonoscopy. Twenty three-cases were diagnosed by CT colonography as colonic malignancy, 18 cases diagnosed by colonoscopy as colorectal benign polyps "8 polyps measured less than 5mm, 6polyps from 5-10mm and 4 more than 10mm", those were correlated with findings of CT colonography which revealed only 12 benign polyps with size ranged from 6mm to more than 10 mm. The other 9 cases proved to be extra colonic metastases. MDCT colonography allows more definitive evaluation of the different cob-rectal and extra-colonic masses as it is anon-invasive modality. It has a higher sensitivity for detecting a clinically suspected colonic neoplastic mass. The conventional colonoscopy may still have an advantage of detecting very small and superficial mucosal lesions and taking biopsy from the suspected superficial areas

Role of MRI and high resolution ultrasonography in evaluation of chronic shoulder pam and shoulder instabifity

Shoulder pin and dislocation usually occur more frequent in young athletes, this study was carried out to assess the role of MRI and US in evaluation of chronic shoulder pain and instability of the shoulder joint. 43 patients complaining of chrome shoulder pain and some of them complaining shoulder instability were examined by MRI, MR arthrography and high resolution ultrasonography. All patients had anterior glenohumeral dislocation [41 males, 95.3% and 2 females, 4.7%]. On MR arthrography, the antero-inferior labrum was torn in 35 case "81.4%", the anterior labrum was torn in 4 cases "9.3%" and attenuated in 4 cases "9.3%", while on conventional MRI the percentages were 44.3% [19 case], 4.7% [2 cases] and 4.7% [2 cases] respectively. US depicted full anterior labral tear in 39 of 43 patients. Sensitivity was 92%, and accuracy was 92%. MR arthrography has been proved to increase the sensitivity and accuracy of MRJ for detecting labor-ligamentous complex and rotator cuff tendon abnormalities. Accuracy of US in depiction of labral tears and associated fractures indicates that US can provide a useful information in patients with anterior shoulder instability