He underwent bilateral VP shunting on 1/26/93; and then, subtotal resection (left frontal craniotomy with excision of the left caudate and thalamus with creation of an opening in the septum pellucidum) on 1/28/93. 
He underwent bilateral VP shunting on 1/26/93 ; and then , subtotal resection ( left frontal craniotomy with excision of the left caudate and thalamus with creation of an opening in the septum pellucidum ) on 1/28/93 .