October 2006         

The patient is a 32-year-old patient who was diagnosed with pseudotumor cerebri in 2004. At that time she was sent to have papilledema, as well as increased opening pressures at the spinal tap.  She had a lumboperitoneal shunt placed at that time. Her headaches improved after that surgery; however, initially she was complaining of low pressure headaches, and then those had resolved with times. She had recurrence of the headaches and apparently when she was tapped her pressures were considered high again, and at that time she had AVP shunt placed. Later on, according to her, her VP shunt failed, and
around nine months ago she had to have it removed, and it had a revision of her lumboperitoneal shunt, so at the time being she has no enteroperitoneal shunt, and just lumboperitoneal shunt that has been
revised. Since that surgery, she has done well initially; however, she has been complaining of recurrence of her headaches. She had several spinal taps that did not show any significant increase in her pressures, and she had an eye exam that did show papilledema despite the headaches. She is also complaining of budding around the lumboperitoneal shunt tract. Otherwise, she is in good health.

DIAGNOSTIC IMAGING:
Outside CT scan of her head, as well as MRI scan of her brain was reviewed. She does not have any venous occlusion.

RECOMMENDATIONS:
Discussed with the fact that at the time being she does not seem to have any signs of increased intracranial pressure. We discussed with her the need to determine whether her shunt is working or not. If her shunt is not, I would not recommend any further surgical intervention, and would refer her for evaluation and treatment of her headaches. To determine whether her shunt is functioning adequately, will obtain
Nuclear Medicine cisternogram, and then see her back for follow up once that is obtained.
 


Radiology Report:

SHUNTOGRAM

CLINICAL INDICATION: 31-year-old Caucasian female with history of pseudotumor cerebri. The patient has an LP shunt.

TECHNIQUE: Under fluoroscopy a sterile lumbar puncture was performed by the neuroradiology service. 1.92mCi Indium-11 pentetate were then injected into the thecal sac. Delayed images of the abdomen were obtained in the anterior and posterior projections per protocol.

FINDINGS: Activity is seen in both kidneys and the bladder. This is consistent with a functioning shunt.

IMPRESSION: INCREASED ACTIVITY SEEN IN BOTH KIDNEYS AND BLADDER CONSISTENT WITH A FUNCTIONING LP SHUNT.

OUTPATIENT NOTE (10/11/06)

The patient was seen today at the Neurosurgery Outpatient Clinic for follow up. Since her last visit she says that her headaches have improved and her pain over the shunt is not as significant.

ASSESSMENT/PLAN:
We discussed with her the fact that the shunt is working, that it does not need to be removed, especially as it would put her back at having recurrent papilledema and problems with her vision. She is to continue follow up with her referring physician and we will see her back for follow up in our clinic as needed.

 

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© 2006 Nuclear Education Online

 Images courtesy of University of Arkansas for Medical Sciences Dept of Nuclear Medicine.