Khalid Rehman Yousaf, Salman Atiq, Mian Sajid Nisar.
Detection and appearances of malignant colorectal masses through transabdominal sonography.
Pak J Med Health Sci Jan ;6(1):205-7.

Objectives: To illustrate the sonographic features of malignant colorectal masses in regards to their clinical significance. Material and methods: The study included 37 patients, including 20 men and 17 women, ranging between 30 and 85 years (mean, 46 years old). The abnormal large bowel segment was localized and demonstrated by anatomic site and orientation along with sonographic features. Results: Out of 37 patients, lower GI tract masses included 4 (10.8%) patients of sinister ileoceacal masses. 14 (37.8%) cases of colonic tumors included patients of 4 ascending colon; 2 cases of transverse colon; and 8 cases of descending colon. Sigmoid tumors were documented in 7 (18.9%) patients besides 9 (24.3%) cases of rectal masses. The masses were either lobulated or revealed a segmental wall thickening simulating appearance of kidney (Pseudokidney sign), or diffused wall thickening (Target sign). On color coding with Doppler scanning, most of the masses demonstrated low resistant flow pattern. Conclusion: We concluded that transabdominal sonography may be the preliminary imaging modality that patients undergo after they present with nonspecific lower gastrointestinal signs and symptoms followed by barium enema and/ or flexible colonoscopy for the confirmation of diagnosis of colorectal masses.

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