Unusual case presentation of fungal ball infection causing diabetes insipidus and seizure disorder.

Sphenoid sinus fungal ball (FB) is a noninvasive fungal infection affecting predominantly immunocompetent middle-aged female patients. Common clinical manifestations include headaches, postnasal drip, and nasal discharge. In this case report, we present a 56-year-old female with a 10-year history of occasional dizziness, vertigo, nystagmus, feeling disoriented and feeling her eyes moving rapidly.