Presentation
Congenitally abnormal. Fits since birth.
Patient Data
There is absence of corpus callosum with absent septum pellucidum and widely spaced vertically oriented lateral ventricle. Dilated occipital horns bilaterally consistent with colpocephaly. Abnormal wavy pattern of gyral development along the inter-hemispheric fissure is seen. There is interhemispheric cyst medial to the right occipital horn measuring 4.0 x 3.3 cm.
There is a hyperdense subependymal nodule at the level of left foramen of monro measuring 7.0 x 7.3 mm. This partially calcified nodule is concerning for the tuberous sclerosis over grey matter heterotopic nodule. Further evaluation was recommended with contrast enhanced CT / MRI.