Ependymoblastoma in a Japanese Black Heifer

Journal of Veterinary Medical Science

Noriaki MIYOSHI²  Kazuyuki UCHIDA¹  Nobuhiro YASUDA²  Mitsuharu MATSUMOTO⁴  Hiroaki KAWAGUCHI³ 

[1] Laboratory of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo;Department of Veterinary Pathology, Faculty of Agriculture, Kagoshima University;Department of Veterinary Laboratory Animal Science, Faculty of Agriculture, Kagoshima University;Department of Veterinary Anatomy, Faculty of Agriculture, Kagoshima University

关键词: brain tumor;    cattle;    central nervous system;    ependymoblastoma;   

DOI  :  10.1292/jvms.001393

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(6)Cited-By(1)An 18-month-old, Japanese Black heifer had ananastasia over a two-week period. The heifer was euthanized and necropsied. Grossly, a brown and soft mass was found in the left cerebellar hemisphere, which originated from the fourth ventricle in the pons. Multiple papillary masses were also found on the wall of the fourth ventricle. There was massive dilatation of the cerebral aqueduct, and also in the third and lateral ventricles. Histologically, the neoplastic cells formed numerous ependymoblastic rosettes and perivascular pseudorosettes. In the fourth ventricle, the normal ependymal cells were replaced by papillary proliferation of the neoplastic cells. Ultrastructually, the neoplastic cells had a feature differentiating to the ependymal cell showing a few basal bodies in the cytoplasm and connecting to adjacent cells with junctional complexes. We diagnosed the present case as ependymoblastoma with its origins in the fourth ventricle.

【 授权许可】

Unknown