It is often difficult to differentiate each pathologic entity among vrious spinal epidural masses on the radiologic bases. We retrospectively analyse radiologic findings of 67 cases of pathologically probven spinal epidural mass to find out any specific findingsof each epidural mass. RESULT : 1. Of 67 cases, metastasis, epicural abscess, neurogenic tuor and meningioma are most common. The others consist of epidural angioma, vertebral hemangioma, chondrosarcoma, fibrosarcoma, eosinopilic granuloma, lymphoma, lipoma and lymphoid hyperplasia. 2. Destruction of the adjacent bone was commonly associated with the epidural mass inmetastasis and epidural abscess. It was also noted in 2 cases of chondrosarcoma, 1 fibrosarcoma and 1 eosinophilic epidural abscess. It was also noted in 2 cases of chondrosarcoma, 1 fibrosarcoma and 1 eosinophilic granuloma. 3. Pressure erosion of adjacent bone was demonstrated in neurogenic tumor and meningioma. 4. Narrowing of intervertebral space was see in only 27% of epidural abscess. 5. The paraspinal tumor was associated in 67%of metastasis, 80% of epidural abscess, 75% of neurogenic tumor, 33% of meningioma. 6. The intradural tumor was associated in 50% of neurogenic tumor and 67% of meningioma. 7. On axial CT imagem, most of the epidural mass shows eccentric location with displacing dural sac to the opposite side. 8. The disease extent more than height of one verteral body was seen in 80% of epidural abscess, 58% of neurogenic tumor, 100% of epidural angioma.