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Hepatol Res. 2000 Jun;17(3):179-184.

Alcohol sclerotherapy of hepatic cysts: its effect in relation to ethanol concentration.

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  • 1Department of Gastroenterology, Tenri Hospital, 200 Mishima-cho Tenri, Nara, Japan


While ultrasonically guided percutaneous aspiration and ethanol injection therapy has proved useful for non-neoplastic giant hepatic cysts that cause symptoms, the optimum quantity of ethanol injected into hepatic cysts has not been established. In eight patients with non-neoplastic giant hepatic cysts who were treated by ethanol injection, ethanol concentration in cystic fluid after treatment was estimated. Ethanol concentrations ranged from 5.9 to 47.6%. Hepatic cyst regressed almost completely in five cases; in all of which, the estimated ethanol concentrations were more than 40%. Our results suggest that it is desirable to drain cystic fluid as much as possible and to inject ethanol as little as possible, so that the estimated ethanol concentration in the cyst exceeds 40% for maximal effect and minimal side effects.

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