Pseudo-Foster Kennedy Syndrome due to Idiopathic Intracranial Hypertension Associated with Empty Sella Syndrome and Hyperprolactinaemia: A Rare Case Report

Abstract

Pseudo-Foster Kennedy syndrome is characterized by unilateral papilledema with contralateral optic atrophy in the absence of intracranial space occupying lesions. A 40-year old obese Asian-Indian female presented with painless progressive diminution of vision in her right eye since one month and constant headache for two months. Fundoscopy showed optic disc pallor in the right eye and papilledema in the left eye. Serum prolactin level was raised. Cerebrospinal fluid manometry revealed high opening pressure value of 38 cm of water with normal composition. MRI scan of the brain detected empty sella syndrome. Pseudo-Foster Kennedy syndrome due to IIH was diagnosed and treated with oral acetazolamide 250 mg, four times a day which resulted in complete resolution of papilledema and headache over a period of two months. Here we report a case of pseudo-Foster Kennedy syndrome which is directly attributed to idiopathic intracranial hypertension and associated with empty sella syndrome and hyperprolactinaemia.