Diffuse Polymicrogyria

Etiology: abnormal cortical organization secondary to ischemic laminar necrosis of 5th cortical layer after 20 weeks gestation, may be caused by in-utero cytomegalovirus, ischemia, or genetic

Radiology Cases of Diffuse Polymicrogyria

MRI of diffuse polymicrogyria in a patient with cytomegalovirus encephalitis
Axial T2 MRI without contrast of the brain show thickening and abnormal sulcation of the perirolandic gray matter diffusely bilaterally. There is also evidence of perisylvian fissure syndrome bilaterally.