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Ultrasonographic analysis of bladder tumors

      Abstract

      To analyze the ultrasonographic features of bladder tumors during transabdominal ultrasonography. Ultrasonograms of consecutive patients diagnosed to have bladder tumors from August 1992 to May 1999 were reviewed retrospectively and correlated with the final histological diagnoses. Various features, including the location, size, multiplicity, shape, surface and presence of calcification, of the bladder tumors were analyzed. Of 109 patients reviewed, 104 had transitional cell carcinoma, 3 adenocarcinoma, 1 carcinosarcoma and 1 prostatic carcinoma. A total of 130 tumors (including 13 multifocal tumors) were detected with 30 (27.5%) patients having more than one tumor in the bladder. Tumor size ranged from 0.5 to 9.7 cm (mean 2.7 cm). The tumor involved the trigone (63, 48.5%), lateral wall (32, 24.6%), posterior wall (17, 13.1%), anterior wall (5, 3.8%) or was multifocal (13, 10%). Sixty-seven (51.5%) tumors were polypoidal, 47 (36.2%) were sessile and 16 (12.3%) plaque-like. The surface was regular in 50 (38.5%) tumors and irregular in 80 (61.5%) tumors. Calcified foci were noted in 54 (41.5%) tumors. There was no statistically significant correlation between ultrasonographic features. The most common appearance is a polypoid lesion arising from the trigone, but there was much variation in the ultrasonographic features of bladder tumors.

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