[Diagnosis of tumor or metastasis in the liver by means of laparoscopy and gammagraphy].

Fifty-four patients with proven malignancy of the gastrointestinal tract or suspicion of primary or metastatic hepatic carcinoma were studied to evaluate the effectiveness of different diagnostic methods. Gammagraphic and laparoscopic evaluations were emphasized. The results indicated that laparoscopy was the most effective method for diagnosing primary or metastatic neoplastic liver disease.