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Date of last update: 10/04/2017.

Forum Name: Neurology Topics

Question: Arachnoid Cyst

 Dig62 - Thu May 31, 2007 7:10 pm

Hello and thank you for your time.

Hypertrophic Cardiomyopathy, Renal Cell Carcinoma
Myectomy, Radical Nephrectomy
Family history of Parkinson's
Atenolol 50mg x 2, Aspirin 81mg

I saw a neurologist on May 17th of this year for symptoms of extreme fatigue/drowsiness, persistent left-sided headache, pain behind eyes with blurriness/double vision, predominantly on left side, and involuntary jerking of left leg while reclining. Also noted are odd electrical sensations across scalp and hissing in left ear.

Was referred for MRI which revealed a "prominent csf space measuring 2.4 x 4.9 x 4.4 cm in the left side of the posterior fossa which may represent an arachnoid cyst versus an assymetric cisterna magna". Attached is a copy of the MRI report with personal information removed.

Upon follow-up with neurologist today I was told that my MRI looked 'good' and that nothing out of the ordinary was found. When pressed about the arachnoid cyst he told me that these are quite common and benign, and that I should take tylenol for the headache. End of discussion.

I feel confused and a bit agitated, and feel that I should get a second opinion. I believe that my symptoms are being caused by this thing and that tylenol is not going to make it go away.

Any advice would certainly be appreciated,


 Dr. Chan Lowe - Wed Jun 13, 2007 6:44 pm

User avatar Arachnoid cysts are fairly common as your doctor has said. It is unlikely that a simple arachnoid cyst is causing your symptoms.

It may be that you are having atypical migraines causing your symptoms. Another possibility would be a seizure disorder.

I would recommend following up with your neurologist to continue evaluating your symptoms and hopefully finding a diagnosis soon.

Best wishes.

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