obtain the analytics region from mesh or vtk file

Is it possible to obtain the region inequalities from a mesh file (vtk-file).

On gmsh I build a Sphere, and with Mathematica I would like to obtain the analytics region function, that’s is possible?.

I can obtain the vertex from the file sphere.vtk, using that:

data = Import["mesh_2_5.vtk", "VertexData"];

But I do not know if exists a routine for obtaining the analytics equations that define this structure. The sphere.vtk can be downloaded from: https://gofile.io/d/OscWUA

thanks