-15-20 mm posterior to the tip of the frontal horn of the lateral ventricle for each brain hemisphere, initial lesions are made 2-5 mm above the upper surface of the corpus callosum and 7 mm away from the midline laterally (the midline is generally determined by the falx
Magnetic resonance imaging (MRI) of the brain demonstrated a collection of fluid along the right falx
cerebri and cerebellar tentorium and shift of brain parenchyma to the left [Figure 1].
Axial nonenhanced CT [NECT, Figure 1) shows an extra-axial, left parasagittal mass associated with the anterior falx
Other findings include follicular hyperkeratosis, hyperhidrosis, nail dystrophy, calcification of falx
cerebri and choroid plexus.8
 The brain itself, although can be considered homogeneous, is separated into three major compartments: two cerebral hemispheres and post fossa, by the cerebral falx
and cerebellar tentorium.
(8) Lesions in the cerebral falx
that involve bilateral medial aspects of the frontal lobe result in attention deficits in complex tasks.
An MRI of the brain showed minimal dilation in the subarachnoid space and a focal 1 cm lipoma in the anterior falx
cerebri, but was otherwise unremarkable.
An interface between the falx
and cortex is identified and an inter-hemispheric corridor not exceeding 5cm in length and 2 cm in width was developed using a 2 cm retractor blade (fig-2).
(4,5) Other characteristic findings in SUFU-related GS include falx
calcifications, sensitivity to radiation and subsequent second primary tumors in the radiation fields, and a strong family predisposition.
calcification is observed in 65% of patients and this calcification is not found in early childhood (3).