Uterine cervix carcinomas spread by direct local extension, lymphatic permeation and hematogenous dissemination. Their metastatic foci are closely related to iliopsoas compartment anatomically no matter what the pattern of spread is. Therefore, iliopsoas involvement in uterine cervix cancer may occur frequently. The authors reviewed pelvis CT of 218 cervix cancer patients for recent one year from March 1986 to Fev. 1987 at Seoul National Univ. Hospital. Among themm, 10 cases showed iliopsoas involvement. Pattern of iliopsoas involvement was classified into four types : infiltrative type, localized mass type, mass with bone destruction type, paraaortic lymphadenopthy type. In all cases except3 cases of infiltrative type, lymphadenopathy or bone metastasis adjacent to iliopsoas lesion was identified. And this finding suggested that the route of iliopsoas involvementin cervizx cancer would be secondary infltration from melastatic focus of adjacent lymph node or bone. Recognition f iliopsoas involvement of cervix cancer may prevent misdiagnosis and predict the degree of disease dissemination.