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Background. Treatment for inoperable secondary liver cancer remains challenging especially in patients with colorectal cancer. Traditional systemic drug therapy is often ineffective, and the use of transarterial chemoembolization is limited due to the systemic toxicity of some drugs. Combining high efficacy and low systemic toxicity, isolated chemoperfusion is a promising treatment option for patients with liver metastasis. Case report. A patient with mesentery leiomyosarcoma underwent several surgeries and chemotherapy courses, but liver metastases continued to grow. Isolated liver chemoperfusion with melphalan was performed after resection of liver segment and mobilization of liver vessels. To reduce the tumor volume and prevent complications, atypical liver resection was also performed. Conclusion. Isolated liver chemoperfusion for the treatment of liver cancer remains a subject of debate and is not included in the standards for treatment of primary and metastatic liver tumors. This technique was shown to be safe and promising in treating liver metastasis from leiomyosarcoma. However, further research is required to assess the role of this procedure in overall survival.

Background. The incidence of liver malignancies is increasing, radical surgery can be performed in a small number of patients, most of them receive drug treatment. Isolated liver chemoperfusion (ILP) is a method of regional chemotherapy that is effective for some metastases but has a high complexity and frequency of complications. An improved method of hybrid ILP may offer new opportunities for patients with unresectable liver tumors. Case report. A 64-year-old patient diagnosed with stage IV sigmoid colon cancer underwent hybrid ILP. The patient was discharged after 6 days in a satisfactory condition without complications. Systemic chemotherapy was performed 21 days after the first hybrid chemoperfusion. The second hybrid chemoperfusion procedure was performed without the laparotomy stage, mobilizing the right common femoral vein and artery. As a result of the chemotherapy, the patients received a positive result on the mRECIST scale – a complete tumor response. Conclusion. The developed method of hybrid ILP has several advantages over traditional ILP and chemosaturation with infusion into the hepatic artery. This method can also be performed repeatedly, which is not possible with traditional ILP.