Immunohistopathological Profile and Biomolecular Level of Central Nerve Tumors in Kinshasa, DRC According to the Classification of the World Health Organization 2016

The goal is to determine immunohistochemical histopathological profile and biomolecular level of Central nerve Tumors in Kinshasa, DRC. According to the classification of the World Health Organization (WHO) 2016. Our study is described on a series of cases that were studied using standard histopathological techniques, before undergoing specific immunohistochemical techniques for the detection of anti-IDH1antibodies in gliomas and biomolecular ones in the search for 1p19q deletion. Central nerve tumors account for 0.18% of all conditions, over a period of time. Meningothelial-type meningioma was the most common (60.9%). The most affected age group is over 50. The distribution of tumors by sex shows a predominance of woman (67.1%). The gliomas had constituted 29.6% of all nerve tumors recorded over the period considered and whose predominance was constituted by oligoastrocytomas with 42.1%. The immunohistochemical profile is characterized by a strong positivity with the anti-IDH1antibody in case of grade II oligoastrocytoma with 6.6%. Our study showed that central nerve tumors account for 0.18 of all conditions, gliomas are made up of 29.6% of all nerve tumors listed with a predominance of oligoastrocytomas. The immunohistochemical profile is characterized by a strong positivity with the anti-IDH1antibody in case of grade II.