Disseminated intravascular coagulation is one of rapidly progressive, and serious disease. But early diagnosis and treatment derive good result. Plain chest radiograph reveals interstitial and alveolar consolidation so findings are non-specific and diagnosis of DIC from that radiograph is very difficult. But radiological findings of DIC appear early and make itself generally useful for early diagnosis and follow-up of progress. 14 case of DIC at radiological department in Medical College of Yonsei University had been experienced. We have analysed radiological findings in chest X-ray and hematologic data. The result obtained are as follows. 1. The underlying cause of DIC is septicemia in 4 cases, gastroenteritis in 3 cases, upper respiratory infection in 2 cases, abtuptio-placenta in 2 cases, toxic hepatitis in 1 cases, post-op. mechanical ileus after manual reduction of intussusception in 1 case and unknown origin in 1 case, respedtively. 2. Chest PA findings showed bilateral nfiltration in 13 case, among which 7 case involved the interstitinum of perihilar or paracardiac region, and the remained extensive interstitial and alveolar infiltration on entirelungs but accentuated on central portions of lung. The pulmonary fibrosis is demonstrated in 6 cases among 8 of follow-up cases. The degree of pulmonary fibrosis in these is roughly related to pulmonary infiltration during active disease. 3. The hematologic value in this cases is decreased platelet count in all cases, prolongation of prothrombine time is 12 case and prolongation of PTT in all cses. Fibrinogen values are decreased in 7 among 8 cases. 4. Findings of plain chest is nonspecific but with help of hematologic studies. The plain chest seems to be a simple and accurate method not only in early diagnosis of DIC but also follow-up of progress. The change in plain chest roughly correlated with hematologic changes. and prognosis of patient.