"Geebau" was a 5.5 year old domestic short haired female spayed feline who presented to the Cornell University Hospital for Animals in July, 1994. Her clinical signs included acute behavior change, left-sided proprioceptive deficits, absent left menace response and left nasal hypalgesia. Anatomic diagnosis was a right prosencephalic lesion, and history and clinical signs were consistent with cuterebra myiasis. This paper will discuss the parasite, the pathogenesis of disease, the treatment protocol, and possible methods for future prevention.