Journals / Turkish Journal of Veterinary and Animal Sciences / 2005 / Cilt: 29 - Sayı: 2
Dicephalus, Arnold-Chiari Malformation, Spinal Dysraphism and Other Associated Anomalies in a Newborn Holstein Calf
- Pages
- 565–570
- DOI
- —
Abstract
A case of dicephalus, Arnold-Chiari malformation, spinal dysraphism and other associated defects was described in a newborn Holstein calf. The heads were medially and caudally joined with temporal bones and one common flattened occipital bone respectively. Cranial cavities became narrow dorsoventrally and included elongation of the compressed brains, and caudal displacement and hypoplasia of cerebelli. In the spinal column, variable degrees of dysraphism such as cervico-thoracal diplomyelia with hydromyelia and syringomyelia, lumbar spina bifida with spinal cord agenesis in the region were observed. The calf had also arthrogryposis of hind limbs and cleft palate of both heads.
Özet
Bu çal›flmada yeni do¤an Holstein bir buza¤›da disefalus, Arnold-Chiari malformasyonu, spinal disrafizm ve di¤er malformasyonlar belirlendi. Buza¤›daki her iki kafa medial ve kaudal olarak temporal kemikler ile yass›laflm›fl bir adet oksipital kemik arac›l›¤› ile birleflmiflti. Kranial boflluklar dorsoventral olarak daralm›flt› ve bu nedenle her iki beyinin bas›nca u¤rad›¤› ve serebellumlar›n hipoplazik durumda kaudale do¤ru yer de¤ifltirdi¤i gözlendi. Medulla spinaliste de¤iflen derecelerde hidromiyeli ve siringomiyeli ile birlikte serviko-torakal diplomiyeli ve lumbar spinal agenezisli spina bifida gözlendi. Buza¤›da arka bacaklarda artrogripozis ve her iki kafada damak yar›¤› mevcuttu.