[Indications for preoperative laparoscopic ultrasonography].

109 laparoscopic ultrasound examinations are performed for a period of 7 years (1993-1999). Laparoscope R. Wolf and 7.5 MHz linear probe "Aloka" are used. On the basis of the results analysis the following indications for laparoscopic ultrasonography (LUS) are recommended: 1. Uncertain diagnosis; 2. Contradictory results of imaging technics; 3. Assessment of tumour's stage; 4. Early diagnosis; 5. Negative data for liver lesion on laparoscopic examination and established or suspected tumour by imaging technics; 6. Negative data of laparoscopy and uncertain evidence of the imaging technics for liver lesion in cases with advanced locoregional stage of extrahepatic primary carcinoma and small chance for palliate surgical treatment; 7. Positive laparoscopic data insufficient to determine tumour resectability; 8. Suspicion for endocrine tumour of the pancreas. Laparoscopy and LUS are indicated for staging of hepatocellular carcinoma; gastric and colorectal carcinoma, especially in T3 and T4 stage; "T4b" stage of gastric carcinoma without liver metastases; all cases of carcinoma of the body of pancreas without data of liver metastases. LUS is irreplaceable nonsurgical diagnostic method in deep placed intrahepatic lesions. The main contribution to diagnosis of laparoscopy and LUS is not only to establish the liver lesion but to give differential diagnosis of the lesion and determine the tumour stage.