Ok..Sorry to hear you child is ill.
We will do all we can to assist you in finding him good doctors and the right information you will need to make an informed decision.
You said you are confused... And I read your post.. and..
Now you have ME confused! HA!

It must be contagious!
I am posting these abstracts about hydrocephalus and a Lyme connection.
Questions-
Are you sure your son wasn't born with Lyme.. or was it transferred to him during breast feeding? Or contracted at a very young age?
Or did you recently find out he had Lyme due to a tick bite or other transmission method?
See.. told you I was confused. Sorry!
Hydrocephalus has been connected to Lyme disease in the past. It appeared from the post above that you just recently had a Lyme diagnosis... and BEFORE that he had hydro?
Check out these abstracts if you would like...
I am being distracted here this evening.. so I will break again and then return. Please excuse me for a moment.

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Hydrocephalus- water on the brain
http://www.allaboutnph.com/content/about-nph.htm
Nervenarzt 1999 Jun;70(6):556-9
[Secondary normal pressure hydrocephalus. A complication of chronic
neuroborreliosis]
[Article in German]
Druschky K, Stefan H, Grehl H, Neundorfer B.
Neurologische Klinik, Friedrich-Alexander-Universitat Erlangen-Nurnberg.
We report about a 57-year-old patient suffering from the typical symptoms of
normal-pressure hydrocephalus (NPH) including gait disturbance, urinary incontinence,
and mental deterioration. CSF analysis established the diagnosis of chronic active Lyme
neuroborreliosis with lymphocytic pleocytosis and intrathecal Borrelia burgdorferi
antibody production. After several weeks of i.v. antibiotic treatment we observed
normalization of CSF parameters as well as a clear improvement of clinical symptoms so
that surgical shunting was no longer indicated. Interference with subarachnoid CSF flow
may be a possible cause of the observed symptomatic NPH in a patient with chronic
Lyme neuroborreliosis.
PMID: 10412702 [PubMed - indexed for MEDLINE]
*************
Neurology 1996 Jun;46(6):1743-5 Related Articles, Links
Lyme neuroborreliosis disguised as normal pressure hydrocephalus.
Danek A, Uttner I, Yoursry T, Pfister HW.
Department of Neurology, Ludwig-Maximilians-Universitat, Klinikum Grosshadern,
Munich, Germany.
A 74-year-old woman presented with gait impairment, urinary incontinence, and
dementia. She showed lymphocytic CSF pleocytosis and pronounced intrathecal Borrelia
burgdorferi antibody production, indicating active Lyme neuroborreliosis. The syndrome
of normal-pressure hydrocephalus (NPH) fully remitted after ceftriaxone treatment. Lyme
neuroborreliosis may cause NPH by interfering with subarachnoid CSF flow.
PMID: 8649583 [PubMed - indexed for MEDLINE]
*******************
Neurosurgery 1990 Sep;27(3):446-51
Chronic Lyme disease with an expansive granulomatous lesion in the cerebellopontine
angle.
Mokry M, Flaschka G, Kleinert G, Kleinert R, Fazekas F, Kopp W.
Department of Neurosurgery, University of Graz, Austria.
Expansive granulomatous lesions in the posterior cranial fossa are rare and have not
been reported in conjunction with Lyme disease. We report a patient with verified
Borrelia burgdorferi infection who developed a tumor in the cerebellopontine angle.
Rapid growth of the tumor led to signs of cerebral compression and to hydrocephalus.
Surgical intervention was required despite florid meningitis. The histological
examination showed inflammatory, nonspecific granulation tissue. The origin of this
tissue is almost certainly causally related to the B. burgdorferi infection. Signs of
inflammation resolved rapidly after subtotal resection. The clinical, radiological, and
biochemical course is documented. This is the first report of an expansive cerebral lesion
in the chronic phase of Lyme disease.
PMID: 2234340 [PubMed - indexed for MEDLINE]
******************
Rev Neurol (Paris) 1989;145(5):362-8 Related Articles, Links
[Neurologic forms of Lyme disease. 12 cases]
[Article in French]
Viader F, Poncelet AM, Chapon F, Thenint JP, Dupuy B, Morin P, Lechevalier B.
Service de Neurologie Dejerine, CHU de Caen.
Twelve cases of Lyme's disease with neurological complications are reported. Seven
patients had meningoradiculitis of the Garin-Bujadoux-Bannwarth type, with facial palsy
in 2 cases. In 1 case the radiculitis involved only the cauda equina. Two more patients
had meningomyelitis. Of the remaining 3, 1 had subacute inflammatory polyneuritis with
albumino-cytologic dissociation, 1 had probable dorsal epiduritis, and the last one
developed parkinsonism and communicating hydrocephalus after an otherwise classical
meningoradiculitis. Three patients recalled a tick bite but only one a cutaneous eruption.
No arthritis or cardiac involvement were observed. In 2 cases the CSF contained
pseudo-neoplastic cells. Severe pain was a prominent feature in most cases. Pain
consistently and rapidly improved on high-dose intravenous penicillin, while other signs
or symptoms (e.g. paresthesias or fatigue) often lasted several months. Parkinsonism and
hydrocephalus were not influenced by penicillin, and both required specific therapy.
Isolated neurological (both central and peripheral) involvement is not unusual in Lyme's
disease and may give rise to a wide range of signs and symptoms. This diagnosis is to be
considered even when other features of Borrelia burgdorferi infection are lacking.
Publication Types:
* Review
* Review of Reported Cases
PMID: 2662339 [PubMed - indexed for MEDLINE]