Table 1.

Patient characteristics

Patient ID	Age at time of CSF collection	LP vs OM	Sex	Race	Diagnosis	CSF cytology	MRI
1	42	LP	F	Unk	Chiari I malformation	N/A	Neg
2	47	LP	F	W	Aneurysm	N/A	Neg
3	56	LP	F	Unk	Left trigeminal neuralgia.	N/A	Neg
4	37	LP	F	Unk	Benign cyst	N/A	Neg
5	56	LP	M	W	Motor neuron disease	Neg	Neg
6	52	LP	F	Unk	Hydrocephalus	Neg	Neg
7	36	LP	M	AA	Hydrocephalus	Neg	Neg
8	20	LP	F	Unk	Pseudotumor cerebri	Neg	Neg
9	37	LP	F	W	Glioblastoma,IDH-WT	Neg	Pos
10	56	LP	M	W	Glioblastoma,IDH-WT	Neg	N/A
11	77	LP	M	His	Glioblastoma,IDH-WT	N/A	N/A
12	61	LP	F	W	Glioblastoma,IDH-WT	Neg	Pos
13	50	LP	M	W	Glioblastoma,IDH-WT	Neg	Pos
14	47	LP	M	A	Glioblastoma,IDH-WT	N/A	N/A
15	54	LP	M	A	Glioblastoma,IDH-WT	N/A	N/A
16	76	LP	F	Unk	Metastatic Lung Cancer	Neg	N/A
17	77	LP	M	A	Metastatic Lung Cancer	rare atypical cells	Pos
18	60	LP	F	W	Metastatic Lung Cancer	Neg	Pos
19	63	LP	F	W	Metastatic Lung Cancer	Neg	Pos
20	70	LP	M	W	Metastatic Lung Cancer	Neg	Pos
21	60	LP	F	Unk	Metastatic Lung Cancer	Neg	Pos
22	61	LP	F	W	Metastatic Lung Cancer	Neg	N/A
23	59	OM	F	A	Metastatic breast cancer	suspcious for lobular breast CA	Neg
24	59	LP	F	His	Metastatic breast cancer	consistent with metastatic carcinoma	Neg
25	62	LP	F	Unk	Metastatic breast cancer	negative	Pos
26	38	LP	F	His	Metastatic breast cancer	negative	Pos
27	73	OM	F	W	Metastatic breast cancer	negative	Pos
28	28	LP	M	W	Glioblastoma,IDH-mutant	N/A	N/A
29–30		OM				N/A	N/A
31	56	LP	M	Unk	Glioblastoma,IDH-mutant	Neg	Pos
32–33		OM				Neg	Pos
34	32	LP	M	W	Glioblastoma,IDH-mutant	atypical cells present	Pos
35–37		OM				Neg	Pos
38	23	LP	M	W	Glioblastoma,IDH-mutant	Neg	Pos
39–40		OM				Neg	Pos