[Ultrasonic diagnosis of polypoid formations of the gallbladder].

Altogether 4000 patients were examined using an ultrasonograph Toshiba SAL 38AS working in the real time mode. 1.08% of the patients were diagnosed to have small polypoid formations of the gallbladder which, in many cases, could not be recognized at oral cholecystography. Routine repeated sonography of the gallbladder demonstrated that in 94.9% of cases, small polypoid formations did not increase in size for 12 to 18 months. Four patients subjected to cholecystectomy manifested polypous cholesterosis of the gallbladder.