The authors presented the results of ultrasonic investigation of 201 p
atients with cholelithiasis that were confirmed during surgery. Concur
rent acute or chronic inflammations and hydrops of the gallbladder wer
e found to be the commonest complications. More rare but dangerous com
plications were cholecystempyesis, wall destructions or paravesical ab
scess. Echographical symptoms of the complications mentioned were pres
ented as well. The informative value of ultrasonic investigation turne
d to be rather high: the USI data coincided with operative findings in
98% of the patients.