Electrophysiologic Analysis of the Foster Kennedy Sign Due to a Pituitary Mass (.pdf)

The Foster Kennedy sign is defined by unilateral optic nerve atrophy due to direct compression by an intracranial mass lesion with resultant contralateral papilledema. It varies in accompanied clinical presentation, and may include headaches or vision loss. Increased knowledge of disease progression and objective diagnostic options, including electrophysiologic tests, are needed to further address and monitor such pathologic conditions. This case is unique as it is due to a pituitary macro-adenoma, which is a rare precipitant of Foster Kennedy sign.