Table 1. . Conventional MRI features associated with 1p/19q co-deletion.

Study	n	Histology	MRI features	Ref.
Brown R et al.	55	Low-grade OD and mixed OA	Quantitative S-transform texture on T2 images	[15]
Chawla S et al.	40	WHO grade II and III OD	Paramagnetic susceptibility effect	[13]
Jenkinson MD et al.	86	WHO grade II and III OD and OA	Calcification heterogeneous intensity signal, indistinct/irregular borders	[11]
Kim JW et al.	56	WHO grade III OD and OA	Frontal lobe location Indistinct tumor borders, heterogeneous intensity signal	[12]
Megyesi JF et al.	40	WHO grade II and III OD	Calcification heterogeneous intensity signal Indistinct border, paramagnetic susceptibility effect	[10]
Zlatescu M et al.	64	WHO grade III OD	Frontal, parietal and occipital location, bilateral growth pattern	[7]

AS: Astrocytomas; OA: Oligoastrocytomas; OD: Oligodendroglioma.