CSFoma

  • Etiology: complication of ventriculoperitoneal shunt
  • Imaging: cystic abdominal mass containing tip of ventriculoperitoneal shunt
  • Complications: can become infected
  • Treatment: drainage with temporary diversion of ventriculoperitoneal shunt
  • Clinical: may present with elevated intracranial pressure and abdominal pain

Cases of CSFoma

Radiograph and ultrasound of CSFoma
AP and lateral radiographs of the abdomen show the VP shunt to be coiled upon itself and there is a suggestion of a retrogastric mass on the lateral view. Transverse US of the left upper quadrant of the abdomen shows a large cystic structure with the VP shunt tip within it.
CT of CSFoma
Axial CT with intravenous and oral contrast of the abdomen shows an extremely large mass filling the abdomen with the tip of the VP shunt within it which is causing hydronephrosis and displacement of the bowel.