the method under study is for use on `` '' ordinary astrocytoma '' '' cell types , i.e. , fibrillary , protoplasmic , gemistocytic , anaplastic astrocytomas and glioblastomas , and is based upon the recognition of the presence or absence of four morphologic criteria : nuclear atypia , mitoses , endothelial proliferation , and necrosis .
C0334579
anaplastic astrocytom
C1335070
: nuclear atyp