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These vessels are called arteriovenous malformations. The abnormal blood vessels in the skin are called telangiectasias.
[ 1 ] Definition [ 2 ] Parkes-Weber syndrome is a rare genetic disease with an unknown prevalence presenting with pathological capillary malformations and arteriovenous malfor...
It has also been reported as a consequence of: A metastatic cerebral tumour. [ 4 ] Arteriovenous malformation, in which chronic venous hypertension was the likely aetiology. [ 5 ] ...
Other syndromes involving port-wine stains and high-flow shunts - eg, capillary malformation-arteriovenous malformations syndrome, Cobb's syndrome and CLOVES syndromes ( C ongeni...
Abnormalities of the blood vessels in the gut These include a range of lesions called haemangiomas, arteriovenous malformations and angiodysplasias. These can be difficult to diagnose even...
There are also often arteriovenous malformations (AVMs), particularly of lungs, liver and brain. [ 1 ] Genetics It is part of a group of disorders inherited in an autosomal dominant f...
Retinal racemose haemangioma This is a rare, usually unilateral, congenital arteriovenous malformation resulting in a direct communication between arteries and veins without an intervening...
Subarachnoid bleeding may be precipitated by coitus in patients with berry aneurysms and arteriovenous malformations (one study suggested that 3-12% of berry aneurysms and 4% of arteriovenous...
A review of 222 cases of haemobilia from Southampton found that two thirds of cases were iatrogenic and that accidental trauma accounted for only 5%. [ 2 , 8 , 9 ] Bleeding disorders, eg, haem...
Congenital Pulmonary Airway Malformation, What is congenital pulmonary airway malformation in babies? Congenital pulmonary airway malformation is an abnormal development...
Chiari Malformations, He also described a single case of cervical spina bifida with herniation of the cerebellum through the foramen magnum, now called Chiari III malformation. [ 3 ] Som...
Vascular malformations (ie arteriovenous malformation, cavernous angioma). Cryptogenic: a cause is presumed but has not been identified.
Occipital lobe lesions (eg, tumours or arteriovenous malformations) - tend to cause coloured shapes and blobs. Charles Bonnet syndrome - complex visual hallucinations brought about by bi...
Aetiology In nearly all cases, TN is thought to be caused by compression of the trigeminal nerve by a loop of artery or vein; another 5%-10% of cases are attributed to tumours, multiple sclerosis ...
Abnormalities of right ventricular outflow - eg, pulmonary valvular atresia or insufficiency, Ebstein's anomaly, arteriovenous malformations, haemangiomas. No structural anomalies - eg...
Most murmurs are systolic and location of a systolic murmur can point toward specific cardiac diagnosis as described in the table below: Upper left sternal border Pulmonary stenosis (P...
Less frequent causes included vascular/ischemic disorders (non-arteritic optic neuropathy, cerebral vascular accidents , sagittal sinus thrombosis and arteriovenous malformation), congenit...
Intracranial neoplasm or surgery. Arteriovenous malformation or aneurysm. Gastrointestinal or urinary tract haemorrhage in the preceding three weeks.
Apraxia and related syndromes. Arteriovenous malformations. Cerebral aneurysms. Multiple sclerosis . Substance abuse .
Listen with the bell of the stethoscope over a closed eyelid for bruits due to cerebral arteriovenous malformations. Listen for cardiac murmurs to ensure that any bruit heard is not just d...