TABLE 3.

Locations of the CPTs^*

	% Cohort
Location	CPP	CPC	Combined	p Value
rt lat ventricle	25.80	28.57	26.13	0.89
It lat ventricle	29.03	71.42	36.84	0.06
3rd ventricle	9.68	0.00	7.89	0.08
4th ventricle	35.48	0.00	28.94	3e-04
CPA	3.22	0.00	2.63	0.32
other†	rt frontal lobe, lumbosacral spine	rt & lt frontal lobe, lt temporal & occipital lobe, thalamus

^*Most CPPs and CPCs were located in the supratentorial compartment. Approximately one-third were in the fourth ventricle and 1 was in the CPA.

^†In the CPP cohort, one patient had metastatic seeding to the lumbosacral spine. In the CPC cohort, lesions were located in the left temporooccipital region in one case, and they involved the thalamus with caudal migration into the quadrigeminal cistern in another case.