Arnold-Chiari malformation classification: Difference between revisions

	Arnold-Chiari malformation Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Arnold-Chiari malformation from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X Ray
Echocardiography or Ultrasound
CT
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Interventions
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Case #2
Arnold-Chiari malformation classification On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Arnold-Chiari malformation classification All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Arnold-Chiari malformation classification
CDC on Arnold-Chiari malformation classification
Arnold-Chiari malformation classification in the news
Blogs on Arnold-Chiari malformation classification
Directions to Hospitals Treating Arnold-Chiari malformation
Risk calculators and risk factors for Arnold-Chiari malformation classification

Revision as of 14:21, 8 August 2019

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Arnold chiari malformation may be classified according to herniation content into 4 subtypes:^[1]

Subtypes	Explanation	Association
Type1	Herniation parts: Cerebellar tonsils	Syringomyelia
Type 2	Herniation parts: Cerebellar tonsil and vermis	Lumbosacral myelomeningocele
Type 3	Herniation parts: Cerebellar tonsil and vermins, lower brain stem	Occipital encephalocele
Type 4	Herniation parts: Brain stem located in posterior fossa, underdeveloped cerebellum	A variation of cerebellar hypoplasia

Syringomiyelia associated with Chiari malformation

@@ Line 11: / Line 11: @@
 |-
 ! style="background: #DCDCDC; text-align: center;" |Type1
-| style="background: #F5F5F5;" |Herniation parts: Crebellar tonsil, flocculi, caudal medulla
+| style="background: #F5F5F5;" |Herniation parts: Cerebellar tonsils
 *
@@ Line 17: / Line 17: @@
 |-
 ! style="background: #DCDCDC; text-align: center;" |Type 2
-| style="background: #F5F5F5;" |Herniation parts: Crebellar tonsil, flocculi, caudal medulla, caudal portion of 4th ventricle
+| style="background: #F5F5F5;" |Herniation parts: Cerebellar tonsil and vermis
 *
@@ Line 23: / Line 23: @@
 |-
 ! style="background: #DCDCDC; text-align: center;" |Type 3
-| style="background: #F5F5F5;" |Herniation parts: Crebellar tonsil, flocculi, caudal medulla, caudal portion of 4th ventricle, lower brain stem
+| style="background: #F5F5F5;" |Herniation parts: Cerebellar tonsil and vermins, lower brain stem
 *