Table 1.

Characteristics of patients with radiation necrosis after Gamma Knife for brain metastases.

No.	Sex	Original tumor	Metastatic site	Prescription dose (Gy)	% Decrease in gadolinium	% Decrease in T2	KPS change
1	F	Lung adenocarcinoma	Left temporal and parietal	22	21	86	50
2	F	Lung adenocarcinoma	Left occipital	20	18	83	50
3	F	Lung adenocarcinoma	Right parietal	18	27	45	40
4	M	Lung adenocarcinoma	Left frontal	15	82	59	50
5	F	Lung adenocarcinoma	Right frontal and parietal	20	34	52	20
6	F	Lung adenocarcinoma	Left occipital	20	55	72	10
7	M	Lung adenocarcinoma	Right frontal	18	10	64	10
8	M	Neuroendocrine lung cancer	Right parietal	24	34	61	40
9	M	Small cell lung cancer	Left posteior horn of lateral ventricle	24	82	80	40
10	M	Small cell lung cancer	Right parietal and occipital	25	49	79	40
11	F	Breast cancer	Left frontal	24	38	81	40
12	M	Renal clear cell carcinoma	Left frontal	22	31	69	40
13	M	Maxillary sinus carcinoma	Right temporal	15	42	79	50
14	M	Esophageal cancer	Right occiptal	24	56	83	10
15	M	Lung adenocarcinoma	Right parietal	20	23	82	40
16	M	Lung adenocarcinoma	Left parietal	18	70	90	30
17	F	Lung adenocarcinoma	Right frontal	22	73	85	40
18	M	Lung adenocarcinoma	Right posteior horn of lateral ventricle	15	33	85	20
19	F	Lung adenocarcinoma	Left frontal	22	67	66	20
20	F	Lung adenocarcinoma	Right posteior horn of lateral ventricle	22	81	85	20
21	F	Breast cancer	Right frontal	15	30	78	30
22	F	Ovarian cancer	Left temporal	20	28	68	20