Defaecation: a study using radiopaque markers.
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Biomedical subjects
Publications and source records attributed to J Halls.
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Renal cell carcinoma in pelvic kidneys is a surprisingly rare entity. This case report describes the first instance in which the tumor was delineated ultrasonographically. No clear rationale for this apparently lower incidence can be determined.
Benign cystic teratoma of the omentum is a rare gynecologic condition. No cases have been diagnosed preoperatively; six cases have been reported in association with an ovarian teratoma. We report a seventh case in which ultrasound and CT were used preoperatively.
To evaluate the frequency of retroperitoneal hemorrhage related to renal biopsy, we prospectively assessed 182 patients (200 biopsies) using state-of-the-art CT and ultrasound. Our study revealed definite CT evidence of hemorrhage after 90.9% of biopsies. In a blinded analysis of images obtained in biopsied patients and in unbiopsied control patients the overall accuracy of CT was 93.8 versus 76.4% for ultrasound. Our data suggest that detectable hemorrhage is virtually always seen after renal biopsy and its frequency is much higher than noted in earlier studies.