A late and extreme complication of lumboperitoneal shunt.

Background Context: Lumboperitoneal (LP) shunting is an effective treatment modality for commmunicating hydrocephalus, pseudotumor cerebri, postoperative pseudomeningoceles, and cerebrospinal fluid fistulas. However, LP shunts are associated with some complications. Here, we report an extreme complication resulting in the formation of granulation tissue.

Purpose: To report a late extreme complication of LP shunt.

Study Design: A case report.

Methods: A late and unusual complication of an LP shunt with unique radiologic findings is presented.

Results: Spinal magnetic resonance imaging studies depicted a mass on the right anterior section of the dural sac encircling the catheter throughout its course from the L3-L4 interspinous level to the catheter tip.

Conclusions: The etiopathologic mechanism, the prolonged duration, and the unusual radiologic findings in this case are unique and remarkable.