Article Figures & Data
Figures
- Fig 1.
A, CT shows a fluid collection in the right frontal lobe along the tract of a VP shunt with surrounding edema. B, NM scan shows a focal accumulation of tracer in a right frontal cyst. C, NM scan shows normal transit of the radiotracer to the peritoneum.
- Fig 2.
A, MR imaging shows a cyst in the right frontal region. B, NM scan shows focal accumulation of the tracer in a right frontal cyst.
- Fig 3.
A, MR imaging shows a cyst in the right frontal region with surrounding edema. B, NM scan shows delayed passage of radiotracer to the peritoneum. C, NM scan shows focal accumulation of the tracer in a right frontal cyst.
Tables
Patient demographics
Total No. of patients 6 Age range (yr); sex (M:F) 24–46; 4:2 Indication for shunt placement (No.) Pseudotumor cerebri 4 Chiari I malformation 1 Postoperative pseudomeningocele 1 Presenting symptoms prior to shunt replacement (No.) Headache 5 Abdominal pain 1 Time to development of cyst after surgery 16 days to 5 years Site of shunt catheter obstruction (No.) Proximal 3 Proximal and distal 3
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