Lateral geniculate body presenting only hemorrhage homonymous hemianopia-A case report
Haruki Tokida1, Yuhei Kanaya, Yutaka Shimoe
1Department of Rehabilitation, Brain Attack Center.
Rinsho Shinkeigaku = Clinical Neurology
|October 25, 2016
Summary
A rare case of localized hemorrhage in the lateral geniculate body (LGB) caused acute visual field loss. This rare event, affecting vision, highlights the LGB
Area of Science:
- Neurology
- Ophthalmology
- Radiology
Background:
- Hemorrhage in the lateral geniculate body (LGB) is an uncommon cause of visual field defects.
- Understanding the precise location and cause of such hemorrhages is crucial for diagnosis and treatment.
Observation:
- A 55-year-old man presented with acute right homonymous hemianopsia.
- Brain imaging revealed a small hemorrhage (1.6 ml) localized to the left LGB.
- Cerebral angiography excluded vascular anomalies, with normal visualization of choroidal arteries.
Findings:
- The patient had risk factors including hypertension, polycythemia, dyslipidemia, smoking, and alcohol use.
- Literature review identified eight previously reported cases of LGB hemorrhage causing various visual field defects.
- This case represents one of the rarest forms of cerebral hemorrhage, with localized LGB hemorrhage occurring in only 1 of 2,763 stroke registry patients.
Implications:
- Localized LGB hemorrhage is an extremely rare cause of acute visual field defects.
- This case underscores the importance of detailed neuroimaging in diagnosing the etiology of visual field loss.
- Further research into the specific vascular supply and risk factors for LGB hemorrhage may improve clinical outcomes.
