TABLE 1:

Clinical features in 20 patients with RVLD in DAVFs

Patient/Age, y/Sex	Clinical Presentation	Angiographic Findings
		Location*	Varices	Drainage Pattern	Accessory Route
A: Type 1, Non-hyperintensity on T2-Weighted MR Images
1/66/M	Mental disturbance	SSS	Multiple	RLVD only	Yes
2/66/F	Exophthalmos	CS	None	RLVD only	Yes
3/62/F	Exophthalmos	CS	None	RLVD only	Yes
4/63/M	Subarachnoid hemorrhage	T-SS	Single	RLVD only	Yes
5/68/F	Double vision	CS	None	RLVD only	Yes
6/49/F	Cerebral hematoma	T-SS	Single	Sinus, RLVD	Yes
7/67/M	Cerebral hematoma	Sig S	Multiple	Sinus, RLVD	Yes
8/59/M	Mental disturbance	CS	Single	Sinus, RLVD	Yes
9/52/F	Mental disturbance	CS	Single	Sinus, RLVD	Yes
10/60/F	Mental disturbance	CS	None	Sinus, RLVD	Yes
11/53/F	Double vision	CS	Single	Sinus, RLVD	Yes
B: Type 2, Hyperintensity on T2-Weighted MR Images
12/51/F	Mental disturbance	T-SS	Single	Sinus, RLVD	No
13/58/M	Lower-limb hypesthesia	SSS	Single	RLVD only	No
14/66/F	Exophthalmos	CS	None	RLVD only	No
15/31/F	Exophthalmos	CS	None	Sinus, RLVD	No
16/50/M	Exophthalmos	CS	None	Sinus, RLVD	No
17/71/M	Headache	T-SS	None	Sinus, RLVD	No
18/63/F	Headache	CS	None	Sinus, RLVD	No
19/47/M	Visual field disturbance	T-SS	None	RLVD only	No
20/50/F	Mental disturbance	T-SS	None	RLVD only	No
21/63/M	Mental disturbance	T-SS	None	RLVD only	No
22/70/F	Exophthalmos	CS	None	RLVD only	No

^*CS indicates cavernous sinus; SSS, superior sagittal sinus; T-SS, transverse-sigmoid sinus; and SigS, sigmoid sinus.