Value of heparinized fine-needle aspiration biopsy in liver malignancy

The accuracy of diagnosis of hepatic malignancy by percutaneous aspiration biopsy was compared using heparinized and nonheparinized 22-gauge needles. When a heparinized instrument was used, it was able to accurately diagnose malignancy and cytologic types of exfoliative cells. Heparinization also made it possible to recover small tissue fragments and make ultrathin sections for histologic examination. In this way, material suitable for cytologic and histologic examination was obtained from 100% and 95%, respectively, of 59 patients suspected of having hepatic malignancy. A correct diagnosis was made cytologically in 92.5% of patients with hepatic malignancy and in 89.5% of those from whom histologic material was obtained. From a combination of histologic and cytologic results, the overall diagnostic rate for hepatic malignancy was increased to 95%. This procedure proved to be a reliable method for diagnosis of hepatic malignancy.
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