Objective：To validate the therapeutic value of CT-guided percutaneous ethanol injection （PEI） in the treatment of metastatic adrenal tumors. Methods： Thirty-one loci （diameter ranging from 1.5 cm to 7.2 cm） in 25 patients with metastatic adrenal tumors were treated with CT-guided PEI for more than twice. Plain and enhanced CT scans were performed 1-2 months after PEI to observe the size and necrosis of the tumors. Results： Post-PEI enhanced CT scan showed that 18 of the 20 loci with diameters less than 3 cm completely necrotized; 11 loci with diameters between 3 cm and 7.2 cm necrotized partially, and 2 loci completely necrotized after another 2-3 courses of PEI treatment. Conclusion： CT-guided PEI is a simple and minimally invasive means for treatment of metastatic adrenal tumors, and the therapeutic effect is satisfactory.[著者文摘]