Morning glory disc anomaly with Chiari type I malformation
Insights
Morning glory disc anomaly is a rare optic nerve dysplasia. This case highlights a coexisting Chiari type I malformation in an infant, emphasizing the need for comprehensive neurological evaluation in affected children.
Area of Science:
- Ophthalmology
- Neurology
- Pediatrics
Background:
- Morning glory disc anomaly is a rare congenital optic nerve dysplasia.
- It is frequently associated with various neovascular and central nervous system abnormalities.
- Standard practice involves neuroimaging and angiography in affected children to identify coexisting defects.
Observation:
- This report details the case of an infant diagnosed with morning glory disc anomaly.
- The infant presented with a concurrent diagnosis of Chiari type I malformation.
- This co-occurrence represents a significant syndromic association.
Findings:
- The study identifies a rare co-presentation of morning glory disc anomaly and Chiari type I malformation.
- This finding underscores the complex etiology and potential neurological associations of optic nerve dysplasias.
- Early detection and management are crucial for pediatric patients with these conditions.
Implications:
- The findings suggest that pediatric patients with morning glory disc anomaly may warrant specific screening for Chiari type I malformation.
- Comprehensive evaluation, including detailed neurological assessment, is essential for affected infants.
- This case contributes to understanding the spectrum of congenital anomalies associated with optic nerve hypoplasia.
Abstract:
Morning glory disc anomaly is a rare optic nerve dysplasia associated with various neovascular abnormalities. Due to these associations, children with morning glory disc anomaly have brain imaging and angiography to detect other congenital defects. The authors report the case of an infant with morning glory disc anomaly and coexisting Chiari type I malformation.
Related Concept Videos
01:29Herniated Intervertebral Disc l: Introduction
40
Intervertebral disc herniation refers to the displacement of the nucleus pulposus (the gel-like inner core of the disc) through a tear or weakened area in the annulus fibrosus (the outer fibrous ring). The displaced disc material extends beyond the normal boundaries of the disc space and may compress or irritate nearby spinal nerve roots or, less commonly, the spinal cord.Etiology and Risk FactorsHerniation commonly results from degeneration, in which aging reduces disc hydration and...
40
01:23Degenerative Disc Disease ll: Pathophysiology
30
The symptoms of degenerative disc disease arise from a combination of mechanical compression, vascular compromise, and biochemical inflammation, which together disrupt nerve function and produce pain.Mechanical CompressionDisc degeneration reduces height and elasticity, predisposing to herniation of the nucleus pulposus, a major cause of radicular pain. Herniations may be protrusion (bulging with intact annulus), extrusion (nucleus extends beyond disc but remains connected), or sequestration...
30
01:27Degenerative Disc Disease I: Introduction
29
Degenerative disc disease is a chronic condition in which intervertebral discs gradually lose structure and function. It is not infectious or autoimmune; rather, it results from age-related biochemical and mechanical changes, influenced by genetic, metabolic, and environmental factors.Structure and Function of DiscsThe spine contains 23 intervertebral discs that absorb load, distribute forces, maintain spacing, and allow flexibility. Each disc consists of a nucleus pulposus, a gel-like core...
29
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
589
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
589
01:25Secondary Spinal Cord Injury llI: Pathophysiology
52
Early Ischemia and Ionic ImbalanceWithin minutes of spinal cord injury, a secondary cascade begins, progressing over hours to weeks. Vascular damage reduces blood flow, causing ischemia and mitochondrial dysfunction. ATP depletion leads to ion pump failure, membrane depolarization, sodium influx, potassium efflux, and water accumulation, resulting in cellular swelling. Increased intracellular calcium further disrupts mitochondria and accelerates cellular injury.Excitotoxicity and Neuronal...
52
01:19Cranial and Spinal Meninges
4.5K
The cranial and spinal meninges are complex protective structures surrounding the central nervous system (CNS), consisting of the brain and spinal cord. These meninges consist of the dura mater, the arachnoid mater, and the pia mater. They protect the CNS, provide structural support, and aid in circulating cerebrospinal fluid (CSF).
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
Cranial Meninges
These meningeal layers cover the cranium. The dura mater is the outermost layer of cranial meninges. It is a thick and durable membrane of dense...
4.5K