TABLE 4:

Spatial localization of elevated Lac and Lip levels compared with morphologic abnormalities after surgery

Patient	Pathology	Elevated Lac			Elevated Lip
Patient	Pathology	Resection Cavity	CE	T2-CE	Resection Cavity	CE	T2-CE
7^*	OD2	No	No	No	No	No	No
8	A2	No	No	No	No	No	No
9	A2	No	No	No	No	No	No
10	OD2	No	No	No	No	No	No
11	OD2	No	No	No	No	No	Yes
12	OD2	No	No	No	Yes	No	No
13	OA2	No	No	Yes	No	No	No
14	OA2	No	No	No	No	No	No
15	A2	Yes	No	No	Yes	Yes	No
16	A2	Yes	Yes	Yes	Yes	No	No
17	A2	No	No	Yes	No	No	Yes
21^*	AA3	No	No	No	No	No	No
22^*	OD3	No	No	No	No	No	No
26^*	GBM	Yes	No	No	Yes	No	No
27^*	GBM	Yes	No	No	No	No	No
28^*	GBM	Yes	Yes	Yes	Yes	Yes	No
29^*	GBM	No	No	No	Yes	No	No
30^*	GBM	No	No	No	No	No	No
31^*	GBM	Yes	No	No	No	No	No
32^*	GBM	Yes	No	No	No	No	No
33^*	GBM	Yes	No	No	No	No	No
34	GBM	No	Yes	No	No	Yes	No
35	GBM	Yes	Yes	Yes	Yes	Yes	No
36	GBM	No	No	No	No	No	No
37	GBM	Yes	No	No	Yes	Yes	No
38	GBM	Yes	No	No	No	Yes	No
39	GBM	Yes	Yes	No	No	No	No

Note.—Data after surgical resection or biopsy but before radiation treatment or chemotherapy. CE indicates contrast enhancement; T2-CE, regions within T2 hyperintensity but outside contrast enhancement; A2, grade-II astrocytomas; OA2, grade-II oligoastrocytomas; OD2, grade-II oligodendrogliomas; AA3, grade-III anaplastic astrocytomas; OA3, grade-III oligoastrocytomas; OD3, grade-III oligodendrogliomas.
* Patients with both presurgical and postsurgical data.