[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.

[Yersinia infections and acute surgical diseases of the organs of the abdominal cavity].

Intestinal yersiniosis was identified bacteriologically and serologically in 4.87% of patients who underwent operation for pain in the right half of the abdomen. The disease was manifested in the form of acute appendicitis, acute mesadenitis, terminal ileitis, and colitis.