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CSF-oma Identification With Nuclear Medicine Shunt-o-Gram

Schmieder, Stephanie, MD; Schraml, Frank, MD

doi: 10.1097/RLU.0000000000002485
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A nuclear medicine shunt-o-gram is used to evaluate ventriculoperitoneal shunt patency and dispersion of radiotracer into the peritoneal cavity. A 73-year-old man presented with worsening memory, gait disturbance, and urinary incontinence. Shunt-o-gram revealed antegrade flow through the tubing and spillage into the peritoneal cavity without dispersion. CT confirmed a CSF-oma. Symptoms resolved after CSF-oma resection. Normal passage of radiotracer through the shunt without normal dispersion into the peritoneal cavity along with CT imaging correctly identified a CSF-oma. This is an unexpected complication of a shunt. Correct diagnosis on imaging likely saved this patient from unnecessary complete shunt revision.

From the Department of Radiology, St Joseph Hospital and Medical Center, Phoenix, AZ.

Received for publication October 8, 2018; revision accepted December 28, 2018.

Conflicts of interest and sources of funding: none declared.

Correspondence to: Stephanie Schmieder, MD, St Joseph Hospital and Medical Center, Department of Radiology, 350 West Thomas Rd, Phoenix, AZ, 85013. E-mail: Stephanie.Schmieder@dignityhealth.org.

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