Case 79 A toddler who previously underwent craniotomy and ventriculoperitoneal shunting during resection of a brain tumor presents with headache and a posterior head mass. (A,B) Frontal and lateral radiographs of the skull obtained as part of a ventriculoperitoneal shunt series demonstrate a large, crescentic soft-tissue mass along the back of the skull, as well as disruption of the shunt catheter, a portion of which extends posterior to the mass (arrow). • Disrupted shunt catheter:
Clinical Presentation
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Differential Diagnosis
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