Rosette-forming glioneuronal tumor of the fourth ventricle.

摘要

Komori et al. (2002) were the first authors to recognize the existence of a new brain tumor entity, rosette-forming glioneuro-nal tumor (RGNT) of the fourth ventricle. The authors described 11 cases of this distinctive tumor of the posterior fossa [6]. A few further RGNT cases were published in the following 5 years [1,2,4,5,8,10], eventually leading to the inclusion of RGNT in the 4~th edition of the WHO brain tumor classification as a benign primary brain tumor classified as WHO grade 1 [7,9].