Table 4.

Comparison of tumors between PET(+) area and PET(-) area of 4 patients in whom tissues were collected from Gd(-) PET(-) areas and were histopathologically confirmed to be tumors based on a central pathological assessment

Subject	Pathological diagnosis of tissues collected from PET(+) areas		Pathological diagnosis of tissues collected from PET(-) areas
	Histological diagnosis	Ki-67 (%)	Histological diagnosis	Ki-67 (%)
H02	Glioblastoma	42.6	Infiltration of glioblastoma	41.0
H10	Severe infiltration of glioblastoma	46.7	Infiltration of glioblastoma	34.5
H11	Anaplastic astrocytoma	15.7	Infiltration of astrocytoma	8.4
L07	Oligodendroglioma	9.7	Infiltration of oligodendroglioma	5.2

The Central pathological diagnoses for tissues collected from PET(+) areas in the same patients are shown for comparison.