My 10yr old son was dx communicating hydro at 18mths after CT when complex partial seizures began. He has never been shunted as was considered mild/mod ventricular dilatation. Has had periods over the past 18 mths of severe headache-worst early a.m., vomiting, nausea, short term memory loss, occasional bowel & bladder incontinance-gets no warning, balance & co-ordination problems-handwriting badly effected, decline in psycho-ed testing, verbal IQ-110, Performance IQ-81,(2 yrs ago OK), History of pale optic discs & visual field loss, some visual loss, has no seizure activity. Sought second opinion, neurologist ordered cineMRI most significant finding increased cerebral blood flow of 1600mls/min, told that 1000mls/min is normal, the neurologist does not know what this means & has not been able to find out. His 1st thought was pseudo tumor but says you do not see large ventricles with that. Said he wished we had taken our son to someone. In a post on your forum dated 5/4/98 it states ventricles can be enlarged in PT. This is all very confusing. He is booked to have repeat MRI & 1st LP next monday. I have found some very minimal information through web search that states in progressive communicating hydro you do see increased cerebral blood flows & that it can be a cause of PT. We are thinking of getting a neurosurgical consult. We live in Australia & cineMRI has only been around for the past 12 mths so the Drs aren't up on all the results is what we were told. Will appreciate any advice or information you can give to help us find the right treatment for our son. Thanks Sharon