Nuclear medicine and the emergency department patient: an illustrative case-based approach
A 49-year-old man was brought to our hospital because of lethargy. His medical history was hydrocephalus with ventriculoperitoneal shunt initially. The ventriculoperitoneal shunt was replaced several times owing to malfunction, and it was later replaced with a right-sided ventriculopleural shunt. The chest radiograph revealed a mass at the right lung. The mass was a capsular collection of cerebral spinal fluid (CSF) in the right pleural cavity diagnosed based on radionuclide shuntogram findings.