ULTRASOUND STUDY OF BLADDER-TUMORS

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  • 1 January 1983
    • journal article
    • research article
    • Vol. 89  (8) , 541-546
Abstract
Ultrasound was used to evaluate bladder tumors both in their detection and in the assessment of their stage. Provided the tumor was > 1 cm, it may be detected on a well performed ultrasound. This investigation enables an evaluation of the morphology of the tumor, its base of implantation, its site and its size. All of these tumors were resected either by the transurethral approach or by cystectomy (19 cases), so that a comparison could be made between the histological and the ultrasound findings. Of the 55 stage I tumors, ultrasound showed an accurate diagnosis in 48 cases (87.2%). Seven tumors were incorrectly classified as being T2; ie., is, over-estimated. Of the 22 patients with stage T2 tumors, the ultrasound diagnosis was correct in 15 cases (68%) with 2 underestimations and 5 over-estimations (considered as being T3). Of the 28 patients with T3 tumors, the ultrasound diagnosis was correct in 25 cases (89.2%) with only 3 underestimations as T2. Ultrasound had a 92.3% reliability in distinguishing between the 2 maintypes of tumor: the infiltrating and the noninfiltrating. This degree of reliability was superior to all other methods. With transabdominal ultrasound greater degrees of reliability were obtained comparable to those obtained when endocavitary ultrasound was used.

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