Congenital Lymphocytic Choriomeningitis

  • Etiology: arenavirus
  • Imaging: mimics cytomegalovirus
  • Clinical: under recognized important cause of congenital brain + retinal injury, necrotizing ependymitis, aqueductal obstructive hydrocephalus

Radiology Cases of Congenital Lymphocytic Choriomeningitis

MRI of congenital lymphocytic choriomeningitis
Axial gradient echo MRI of the brain (above) show bilateral posterior periventricular punctate hypodensities felt to represent calcifications. Axial FLAIR MRI (below) show areas of patchy increased signal bilaterally in the periventricular white matter and in the subcortical white matter.