Pediatric emergency medicine trisk 4012 4012

cardiorespiratory maintenance, emergent cranial imaging and assessment by
a neurosurgeon are essential. Definitive treatment will require some form of
surgery. In some cases, there may be discreet tumor mass causing
obstructive hydrocephalus and the goal of surgery will be tumor resection,
which may relieve the hydrocephalus. In other situations, treatment will
require diversion of the CSF itself, in the form of either a CSF shunt or an
endoscopic third ventriculostomy (ETV).

FIGURE 122.4 An approximately 4.7 × 3.3 × 3.5 cm T1 hypointense, minimally
heterogeneous, circumscribed mass fills the fourth ventricle, which is effaced toward
the right, and displaces the pons and medulla anteriorly. There is resultant mild–
moderate dilatation of the lateral ventricles, third ventricle, and cerebral aqueduct.