[Arnold-Chiari malformation].

Address for Correspondence: Dr. Joseph Abraham, Department of Anatomy, Government Medical College and Hospital, Chandigarh 32, India, 160030. Phone No.: +919041466127. E-Mail: [email protected] Chiari malformations (CM) are named for Hans Chiari, an Austrian pathologist, who first identified type I-III in 1891. This study was conducted on 400 fetuses obtained from department of Obstetrics and Gynecology, Government Medical College and Hospital, Chandigarh. 4 cases were diagnosed with Chiari malformation. All cases were associated with meningomylocele. In our study we found that 3 cases were of type 2 ACM (ELSTER AND CHEN) which included herniation along with meningomylocele and 1 case of type 3 (Small brain, parietal and occipital bones are not properly formed, cerebellum seen protruding through foramen magnum, leading to herniation ). Arnold Chiari Malformations can be prevented by preconceptional folic acid and Vitamin B 12 supplementation