Related Experiment Video
Updated: May 29, 2026

Three Dimensional Vestibular Ocular Reflex Testing Using a Six Degrees of Freedom Motion Platform
Published on: May 23, 2013
A probable cavernoma in the medulla oblongata presenting only as upbeat nystagmus
Hojin Choi1, Chang-Hun Kim, Kyu-Yong Lee
1Department of Neurology, College of Medicine, Hanyang University, 249-1 Guri Hospital, Gyomun-dong, Guri-si, Gyeonggi-do 471-701, Republic of Korea.
Abstract:
A cavernoma is a vascular malformation in the central nervous system. Brainstem cavernoma are relatively common and induce variable neurological symptoms. A 19-year-old woman visited our hospital with complaints of continuous dizziness. On a neurological examination, continuous conjugated upbeat nystagmus was observed in the primary position of gaze. A brain CT scan and MRI showed focal hemorrhagic signals in the central caudal medulla caused by a cavernoma. The spontaneous upbeat nystagmus disappeared gradually. To our knowledge, this is the first report of a probable cavernoma in the medulla oblongata presenting with upbeat nystagmus only.
Related Concept Videos
Glaucoma: Overview
Brainstem: Control Centers of Medulla
Olivary Nucleus
The olivary nucleus, or inferior olivary nucleus, is located within the ventrolateral part of the medulla oblongata. It is primarily involved in motor coordination and motor learning. The olivary nucleus receives input from the spinal cord, cerebellum, and motor...
Brainstem
The Midbrain
The midbrain is located beneath the diencephalon and connects the cerebrum with the lower parts of the brain. The cerebral peduncles are prominent midbrain structures that house the...
Cerebral Edema ll: Pathophysiology
Angle Closure Glaucoma: Treatment
Aneurysm II: Clinical Manifestations and Diagnostic Studies
