Disease Information for Arteriovenous malformations

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Clinical Manifestations
Signs & Symptoms
Head and Neck Soft Tissue Mass
Lump in Cervical Area
Neck Mass
Acute Limb ischemia
Bounding pulse
Cardiac Symptoms/Signs
Clubbing
Clubbing of fingers/toes
High blood pressure/sign
Low diastolic blood pressure
Skin nodules/Subcutaneous nodules
Subcutaneous nodules
Subcutaneous nodules in Children
Abdominal bruit
Stool color/appearance abnormal
Vomiting blood/hematemesis
Ataxia
Bruit of head/skull
Orgasm triggered headache
Staggering Gait
Asymmetric Limbs
Clinical Presentation & Variations
Presentation/Ataxia in a Child Acute
Demographics & Risk Factors
Population Group
Child
Population/Pediatrics population
Sex & Age Groups
Population/Child
Population/Children/all
Laboratory Tests
Abnormal Lab Findings (Non Measured)
Fecal Globin Immunochemical Test positive
Abnormal Lab Findings - Increased
Mixed Venous Oxygen Saturation (Lab)
Diagnostic Test Results
CT Scan
CT Scan/Angiography Legs Abnormal
X-RAY
Xray/Calcified artery/veins finding
Xray/Auditory meatus widened or eroded/Skull
Xray/Multiple intracranial calcifications/Head
Xray/Asymmetry/skeletal
Associated Diseases & Rule outs
Associated Disease & Complications
Arteriovenous fistula
Congestive heart failure
Hematomyelia
MoyaMoya disease
Renal arteriovenous fistula
Spinal Dura AV Fistula
Venous insufficiency/leg, chronic
Leg ulcers
Lower GI bleeding
Upper GI bleeding
Ataxia Disorder
Disease Mechanism & Classification
Class
CLASS/Cardiovascular (category)
CLASS/Vascular disorder (ex).
CLASS/Vein disorder (ex).
Pathophysiology
Pathophysiology/Highly vascular tumor/cancer
Synonyms
Synonym
A V malformation, Arteriovenous anomaly, arteriovenous deformity, Arteriovenous Malformation, Arteriovenous malformation (morphologic abnormality), Arteriovenous Malformation Unspecified, Arteriovenous Malformations, AV Cong arterioven malforma, AV Congenital arteriovenous malformation, AV MALFORMATION, AVM Congenital arteriovenous malformation, AVM Congen arteriovenous malf, Congenital arteriovenous malf, CONGENITAL ARTERIOVENOUS MALFORMATION, Congenital arteriovenous malformation (disorder), deformity arteriovenous, Malformation Arteriovenous, Malformations Arteriovenous, Synonym/AVM
Definition

Abnormal, tangled collections of dilated blood vessels that result from congenitally malformed vascular structures in which arterial afferents flow directly into venous efferents without the usual resistance of an intervening capillary bed; A common type is the congenital arteriovenous fistula (ARTERIOVENOUS FISTULA /congenital); For arteriovenous malformations in the brain, INTRACRANIAL ARTERIOVENOUS MALFORMATIONS is available; (From Merck Manual, 15th ed)----------------------------------------------Arteriovenous Malformation; AVM; Arteriovenous Malformation of the Brain; Spinal Arteriovenous Malformation; Arteriovenous malformation (AVM) is a congenital defect in which arteries and veins are tangled and not connected by capillaries; The lack of capillaries allows blood traveling through the abnormal vessels to flow rapidly and under high pressure and prevents the nutrient rich blood in the arteries from reaching the tissues; AVM can occur in many different parts of the body, but those located in the brain, brainstem and spinal cord (neurological AVM) can affect the entire body-----[NORD 2005]-------------

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External Links Related to Arteriovenous malformations
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Merck
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PubMed (National Library of Medicine)
NGC (National Guideline Clearinghouse)
Medscape (eMedicine)
Harrison's Online (accessmedicine)
NEJM (The New England Journal of Medicine)
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