Pineal Gland Mass presenting as Parinaud Syndrome in a 21 Year Old Patient

We report a case of a 21-year-old Filipino, with a history of progressive diplopia, who presented with headache, dizziness and vomiting. Ophthalmologic exam revealed light near dissociation, physiologic anisocoria, bilateral upgaze palsy, convergence retraction nystagmus and pseudo-abducens palsy of the left eye. Imaging was done, which revealed pineal neoplasm with obstructive hydrocephalus. This text aims to present a case of pineal gland neoplasm which presented as diplopia alongside signs and symptoms of Dorsal Midbrain Syndrome (Parinaud Syndrome).