Internal abdominal hernia: diagnosis with ultrasonography.

The imaging findings associated with internal abdominal hernia have been reported for plain radiography, barium studies, arteriography and computed tomography. The authors present a case in which the ultrasonographic findings indicated left paraduodenal hernia. In the investigation of an abdominal mass, the presence of changing cystic or tubular internal components and a surrounding membrane should arouse suspicion of an internal hernia.

Color Doppler as an adjunct to prostate ultrasound.

Endorectal ultrasound of the prostate with color Doppler is a new technique to identify internal vasculature and flow. In a period of one year more than 500 men have been examined with this technique. The normal prostate will demonstrate flow within the surrounding vasculature; there is no distinguishing flow among the various zones.

Angioplasty of bilateral renal artery occlusion--a case report.

Percutaneous transluminal angioplasty of the renal arteries is a commonly performed procedure. The authors report a case of bilateral recanalization and dilation of occluded renal arteries in a young female. In this case, the procedure allowed for conservative management rather than emergency surgery, which would have been exceedingly hazardous to the patient's renal function and life.

The effects of chronic uremia on glucagon binding and action in isolated rat hepatocytes.

Increased liver sensitivity to glucagon has been proposed to play a role in the complex metabolic state of chronic uremia. In order to assess this possibility at the cellular level, we studied basal and glucagon-stimulated alpha-aminoisobutyric acid (AIB) uptake, glucagon binding, and glucagon degradation in isolated hepatocytes from chronic uremic and pair-fed and ad libitum-fed control rats. The uremic rats were euglycemic and hyperglucagonemic when compared with their controls.

Initial inhibition and recovery of protein synthesis in cycloheximide-treated hepatocytes.

Previous studies conducted with intact rats had demonstrated that protein synthesis was reversibly inhibited by cycloheximide. Polysome aggregation occurred during inhibition with a return to normal during recovery. Suggesting that the block of translational activity involved termination and release of polypeptides.